Fex

Fex is a former heir of the thirteenth vampire family whose flight to the human world brings him into Quinn's first circle of vampire allies. His inherited string ability, decision to create a blood weapon from his own crystal, and eventual work as a Royal Knight and co-founder of the Vampire Corps make him an important bridge between vampire tradition and human society. His loyalty to Quinn develops from a self-serving deception into a bond he treats as chosen family across more than a millennium. (Chapters 139–140, 255–264, 834, 1383, and 1652–1653)

Biography

Escape from the thirteenth family and the academy

Fex begins as the designated successor of Lee Sanguinis, leader of the thirteenth family, but experiences that position as confinement rather than privilege. Stories told by the grandfather who raised him make the human world seem like a place of novelty and freedom, so the roughly sixteen-year-old Fex steals through a portal with his familiar Ham, relying on an expensive sunlight ring to survive outside vampire territory. He knows that exposure of the vampire species can be punished by death, yet accepts the risk because returning to the role chosen by his father feels worse. With no human identification he is arrested and drafted into the military academy, turning an attempted adventure into an improvised life among people whose customs and ability rankings he does not understand. (Chapters 139–140 and 166–171)

At the academy Fex hides as a level-one ability user and is initially driven more by loneliness and amusement than by concern for humans. When Peter's starvation threatens to expose the vampires, Fex stops him with strings, then abducts students with different body types so Peter can feed and uses influence to suppress their memories. He treats the victims as convenient resources and even tries to make Erin a condition for his help, showing how deeply vampire assumptions about humans still shape him. At the same time, the effort is meant to prevent Peter from killing openly and to protect Quinn's group; Fex is already choosing continued companionship over simply abandoning a dangerous situation. (Chapters 162–178)

Fex first approaches Quinn with a concealed escape plan: if his family retrieves him, he intends to offer the apparent shadow user as information valuable enough to reduce his punishment. Sparring and shared danger undermine that calculation. Fex teaches Quinn vampire martial arts, supplies blood and a preservation flask, helps conceal Peter, and repeatedly warns the group about vampire rules and the possibility of discovery. During a portal expedition he continues fighting after severe wounds and tells Ham not to report Quinn if he dies, admitting to himself that the friendship has become the most enjoyable and meaningful experience of his restricted life. (Chapters 179–229 and 233–255)

To protect the group from a king-tier beast, Fex deliberately bleeds, suppresses healing, and exhausts his remaining power until thirst forces him into the Bloodsucker state. The choice gives him enough physical force to fight the beast but removes his ability to distinguish friend from foe and leaves him unable to heal; Quinn later spends his own preserved blood and risks another fight to save him. Remembering everything he did while transformed, Fex confesses his original plan and is ashamed that Quinn never considered abandoning him in return. He renounces the deception, pledges himself to Quinn, and names them blood brothers, making the relationship a chosen obligation rather than a temporary alliance. (Chapters 255–264)

Trial, rescue, and the Cursed faction

When Silver comes to retrieve him, Fex and the others substitute Peter for Quinn in the hope of satisfying vampire law without exposing the true shadow user. Fex dislikes bringing Peter into danger but accepts Peter's voluntary offer and returns with him, believing it may protect everyone else. At his trial, however, Fex refuses to let the thirteenth family bear punishment for a false account. He admits what he did, states that he never wanted to inherit his father's position, and argues that Silver is better suited even though vampire custom excludes her because she is a woman. His honesty preserves the truth about Quinn at the cost of his status: Fex is stripped from the family and sentenced to execution. (Chapters 301–328 and 354–357)

The public execution exposes the relationships that vampire law had tried to subordinate. Lee and Silver fight for Fex despite their official duties, while Quinn's group invades the settlement to rescue him. Seeing Quinn arrive brings Fex to tears because the action confirms that their blood-brother promise is mutual rather than ceremonial. Arthur's intervention prevents the conflict from becoming a massacre, and Quinn establishes himself as the Tenth leader and claims Fex as his family. Although Fex still loves Lee and Silver, he accepts that his future belongs with Quinn's Tenth family, replacing an unwanted inherited succession with a community he actively chooses. (Chapters 465–496)

Back in the human world, Fex becomes a field member of the growing Cursed faction. His strings restrain enemies, move allies, cross terrain, retrieve objects, and compensate for teammates whose abilities are less suited to capture. He also learns to reinforce the strings with blood when ordinary material is cut or burned. These missions put him beside humans as partners rather than subjects and make his vampire knowledge useful to the whole faction; even when he refuses to challenge Hilston, he explains that his commitment is to Quinn and the people who have earned his loyalty, not to an abstract duty toward every human. (Chapters 517–607 and 732–798)

That integration does not erase the danger of his biology. Parasite poison drives Fex into a partial Bloodsucker transformation despite his not having deliberately starved himself, and he kills Blip by draining his blood before Kazz subdues him. Fex remembers the death when the other poisoned fighters do not, isolates himself for days, shakes at the sight of a blood pack, and fears feeding even though refusal could trigger another transformation. The guilt becomes a lasting moral pressure: when Peter is later threatened, Fex uses his vampire power because he cannot accept watching another companion die. His remorse does not undo Blip's death, but it decisively changes how he understands the cost of losing control. (Chapters 699–704 and 748)

Blood weapon discovery and the Dalki war

Fex's first major independent advance is learning to form a weapon from the crystal inside his own body, a capability vampires had not believed they possessed. He returns to the thirteenth castle to show Lee and Silver, both because he wants to help the family he left and because he still wants his father to be proud of the vampire he becomes beside Quinn. Lee apologises for putting code and ambition above his children, while Fex again declines succession and shares the method before returning to the Tenth. The reconciliation lets him keep familial love without surrendering his chosen allegiance, and his discovery gives the wider vampire race a path to soul weapons of its own. (Chapters 818–820 and 834)

The discovery also makes Fex politically valuable. After Kazz reveals it, Fex is abducted and held in a Bloodsucker cave by vampires who say they have already obtained what they needed from him. Silver, Leo, and Nate rescue him, but their escape brings them against an Original and a group of Bloodsuckers. Fex's appeal to Silver—grounded in his admiration for her rather than obedience to rank—helps her overcome the belief that an Original must be treated as a god. The incident demonstrates that his technique can be exploited, yet it also makes Fex a catalyst for his sister's rejection of paralysing vampire doctrine. (Chapters 849–872 and 902)

During the Dalki attacks, Fex uses the weapon to protect civilians and develops an effective partnership with Samantha. He diverts from their route to rescue a trapped mother and child, draws blood from a Dalki into the needle, and injects it into himself for a combined enhancement. He then restrains a two-spike Dalki with a prepared web and transfers the needle to Samantha so that she can activate her nine-tailed soul weapon again. The plan works only because Samantha trusts his explanation and performs the ability activation that his puppetry cannot control; Fex finishes the Dalki despite being caught in allied fire, reveals his need for blood to heal, and earns her confidence by placing the shelter ahead of secrecy. (Chapters 1015–1021)

That trust continues after Samantha discloses his secret under pressure: Fex forgives her and focuses on the grief and danger surrounding her rather than treating the revelation as betrayal. He refines the same support style with the captured Agent 11, whose strong body, sword skill, and Qi make him an unusually effective puppet. By combining the needle's enhancement, blood control, blood ornament, and hardened strings, Fex can stop a demi-god-tier beast long enough to protect exhausted soldiers, but the stored blood is consumed rapidly and the beast eventually cuts free. Across the war he becomes less concerned with proving that vampires are superior than with matching the right ally to the threat, while continuing to worry about the Sanguinis and Tenth families when the vampire settlement is endangered. (Chapters 1060, 1113, 1137–1139, 1166, and 1289)

Royal service, family, and the millennial return

Fex remains close to Quinn as vampire leadership and the human war merge. He helps persuade Arthur that Quinn deserves another chance, refuses to abandon Linda merely to reach his own family sooner, and returns from confinement to find Quinn established as Vampire King. Quinn appoints him one of two Royal Knights and assigns him to teach the leaders how to summon their inner blood weapons. Some vampires dismiss the appointment as favoritism, but the teaching duty rests on the discovery only Fex has demonstrated and turns the former runaway heir into a source of institutional change. (Chapters 1336–1383)

As Royal Knight, Fex supports the final Dalki campaigns by coordinating bodies and movement rather than trying to overpower every enemy himself. He can attach needles and strings to multiple allies so that he can pull them out of danger or reposition their attacks, while his own years of puppet training let him exploit the martial skill of whoever he controls. His battlefield relationship with Samantha grows beyond mutual trust; after the war they marry, work with Ashley to organise vampire soldiers into the Vampire Corps, and eventually have a son, Andy. Fex therefore answers the old Sanguinis demand for succession on his own terms: he passes down both family technique and public responsibility without returning to the leadership he rejected. (Chapters 1426–1435, 1506, 1530–1569, and 1652–1653)

The peace Fex helps build does not last intact. Samantha is transformed into a Draugr and later killed in a Dhampir attack, ending their plan to enter deep sleep together. Fex devotes his remaining active decades to finding her killer and delays eternal slumber until age has left him frail, eventually handing the Vampire Corps to Andy. A millennium after Quinn's disappearance, Andy wakes him so that he can fulfil two final wishes: seeing Quinn again and asking his blood brother to avenge Samantha by killing Erin. Fex refuses to let Quinn apologise for being absent, credits the former Cursed members with trying to build a better world in his name, and returns to slumber after entrusting Quinn with both the request and the Corps' support. (Chapters 1652–1653 and 1795)

When the question of Erin's survival becomes part of a larger celestial conflict, Quinn wakes Fex again because Samantha's death gives him a direct stake in the decision. Quinn transfers 10,000 celestial points and makes him a dedicated follower, stabilising his nearly exhausted life and restoring enough strength to move and fight without reversing his aged appearance. Fex uses that extension to accompany the group, takes up Arthur's sword because his former physical prime is gone, and fights demon creatures with strings during the effort to close Immortui's portal. He is knocked away in the battle and finishes exhausted, showing that celestial reinforcement restores usable power but does not make his old body equivalent to Quinn or the other highest-level combatants. (Chapters 1901, 1935–1936, 1968, and 1983–1985)

Altered memories and final slumber

Fex joins the public ceremony honouring the people who stopped the portal, receiving recognition alongside the younger and older heroes with whom he fought. Quinn is taken away during the event, and shortly afterward Quinn ceases to be a celestial. The system establishes that existing dedicated followers retain their current celestial points and no longer die merely because the link to their celestial has ended, but that Quinn can no longer add or remove energy. Fex's borrowed lease on active life therefore remains finite and non-renewable even before later events force him back toward slumber. (Chapters 1988–1992)

The mass alteration of memory turns Fex against the family he had spent his life protecting. Acting under Jim's order with Muka and Xander, he tries to stop Quinn, Layla, and their children from leaving the vampire settlement; his strings cannot move Quinn, and Quinn refuses to injure him. Quinn instead tells him to test the gaps in his memories of their blood-brother oath. Fex cannot consciously remember the relationship, but recognises the pain in Quinn's expression, reasons that someone so powerful could have killed them, and supports asking Jim questions. The scene preserves his defining habit of reading people and choosing personal evidence over authority even when the history that taught him that lesson has been removed. (Chapters 2104 and 2107)

Fex's legacy continues through Andy and the Vampire Corps while the demon conflict widens. Later records describe Fex and Andy as people Quinn can still contact through the Corps, and Andy uses the string ability, blood aura, and a soul weapon technique taught by his father while protecting the organisation from Magnus. The Corps itself remains the durable consequence of Fex and Samantha's attempt to make vampires and humans protect one another, surviving political upheaval, altered memories, and both of its founders' withdrawal from active command. (Chapters 2321–2336)

The corpus gives conflicting chronology for Fex's final withdrawal. His direct appearances show him active after the mass memory change, while a later account says that he spent time helping Andy and requested deep slumber before those memories were altered; the mechanism or exact timing of that discrepancy is not resolved. What is consistent is that Fex ultimately returns to a chamber and does not emerge again. When Immortui's defeat returns vampires to humanity, Quinn states that every vampire still in eternal slumber is already dead and cannot be awakened. Fex's latest condition is therefore death in slumber, after leaving the Corps and the Sanguinis technique to his son. (Chapters 2104–2107, 2537, and 2541)

Appearance and personality

As a young vampire, Fex has gelled-back black hair, glowing red eyes, dark clothing, and the appearance of a boy around sixteen. His deliberate Bloodsucker state is visually distinct: his hair disappears, his body becomes heavily muscled, his claws lengthen, and his eyes turn completely black. After more than a millennium he emerges with wrinkles, a smaller and frailer body, faint red eyes, and fully white hair that he still combs backward. Celestial energy restores colour and usable strength to the old body but does not make him young again. (Chapters 139, 257, 1652–1653, and 1935–1936)

Fex is sociable, flirtatious, irreverent, and quick to use humour when frightened or emotionally exposed. His early privilege leaves him casual about manipulating humans, but he is capable of recognising guilt and changing his conduct rather than merely excusing it. Promises become central to his identity: he follows Quinn after losing his family title, continues protecting human companions after accidentally killing Blip, reconciles with Lee without abandoning the Tenth, and waits centuries for the chance to see his blood brother. Grief over Samantha narrows that generosity into a consuming demand for revenge, yet even in old age he refuses to blame Quinn or the former Cursed members for the years they could not save. (Chapters 162–178, 255–264, 354–357, 699–704, 834, and 1652–1653)

Powers and abilities

Fex's principal power is the Sanguinis family's string ability, developed through vampire martial arts, blood control, puppetry, and a self-created blood weapon shaped like a large needle. He uses those systems as a combined support style: strings establish physical control, the needle enhances a selected body, and his training supplies the movements that body performs. His late celestial reinforcement extends his ability to fight but does not remove blood requirements, bodily exhaustion, or the consequences of age. By the end of the corpus he has no usable powers because he dies while in eternal slumber after vampires return to humanity. (Chapters 203, 818, 834, 1011–1021, 1166, 1289, 1935–1936, and 2541)

Vampire physiology, influence, and the Bloodsucker state

As a vampire noble, Fex possesses strength, speed, senses, durability, and blood-fed regeneration beyond an ordinary human. Sunlight harms him, which is why his first journey depends on a crystal-lined ring; blood restores wounds and energy, while sustained deprivation increases the danger of a Bloodsucker transformation. He can also use vampire influence to implant commands or suppress memories, but simple instructions are more reliable than complex ones, mentally resistant targets can reject it, and editing a large event can damage the subject. These traits are racial capabilities rather than products of his string ability. (Chapters 139–140, 162–178, 203, 257–264, 276, and 1021)

Fex knows how to force a Bloodsucker transformation by allowing himself to bleed, delaying healing, and spending his remaining energy until thirst reaches its maximum. The starved form grants a major increase in physical force and speed, retains traces of his learned martial movement, prevents healing, and cannot reliably distinguish allies from enemies. The corpus explains a numerical doubling and halved health for Quinn's version but does not assign the same exact figures to Fex, so only the demonstrated enhancement and loss of control are established for him. Parasite poison later triggers a partial version even though Fex has not lost all his blood; the altered condition continues feeding after it should have ended and kills Blip, showing that outside interference can make the state even less predictable. (Chapters 257–259 and 699–703)

Sanguinis strings and puppetry

The inherited thirteenth-family ability creates fine strings from Fex's fingertips. He uses nearly invisible strands for traps and physical manipulation, red blood-infused strings for stronger restraint, and needle-tipped connections to control a body as a puppet. The strings can bind limbs, pull people or objects, suspend and redirect targets, create traversal lines, and reproduce precise martial movements through another person's body. Coordinating two puppets convincingly already makes the younger Fex sweat, and his early limit is normally ten active connections; weak ordinary strands can be cut by a good blade, while blood infusion lets them resist hazards such as fire. (Chapters 162–178, 203, 550–551, 607, and 818)

Puppetry controls physical position and movement rather than the target's decisions or learned power activation. Fex therefore prefers hand-to-hand fighters and weapon users: he can supply faster or more efficient motions while the puppet voluntarily channels Qi or wields a blade. He cannot make Samantha activate elemental powers or her soul weapon, and Agent 11's resistance to influence does not protect him from strings attached to his body. A strong target, severed strings, excessive simultaneous control, and Fex's own loss of concentration remain effective limits; the technique is strongest when the controlled fighter cooperates instead of resisting every motion. (Chapters 203, 1016–1021, 1166, and 1289)

Fex's later blood control lets detached red strings rise and move without remaining tied to his fingers, creating more anchor points and webs. He combines that control with blood ornament and blood hardening to produce a dark-coated net roughly twice the thickness of his usual strands. The reinforced net arrests a demi-god-tier beast in mid-charge, but the combination is difficult because Fex's blood control remains comparatively weak, and it rapidly consumes the blood stored in his needle. Once the hardening falls away, the beast cuts the strings, leaving the technique a powerful delaying measure rather than an unbreakable restraint. (Chapters 818 and 1166)

Summoned blood weapon

Fex creates the large black, glass-like Blood-string Needle by concentrating on the crystal in his chest and breaking part of it down into an inner blood weapon. Unlike conventional blood weapons made from another vampire's extracted crystal, it comes from his own body and can be summoned or dismissed at will. The discovery begins as a personal experiment, is first witnessed by Kazz, and is later taught to Lee, Silver, and the family leaders. The text calls it both a blood weapon and a soul weapon; it does not establish a separate manufactured item, so the needle is an ability construct rather than inventory. (Chapters 820 and 834–850)

The needle must be filled with blood to activate its main effect. Fex can pierce a source, draw the blood into the hollow weapon, and inject it into himself or another person. In himself it provides a temporary physical enhancement; in a human it increases strength or available ability energy and gives Fex a single control point for bodily movement. Dalki blood produces both the needle's normal enhancement and the separate strengthening effect of Dalki blood, enabling Fex to contest a two-spike Dalki and later recharge Samantha's nine-tail technique. The precise conversion ratio between the donor's blood and the recipient's strength is never stated. (Chapters 748, 1011, and 1015–1021)

The enhancement lasts only while the needle remains inserted, although the separate effect of injected green Dalki blood can persist for a time after removal. Only one body receives the needle's direct power at a time, which forces Fex to choose between strengthening himself and strengthening or controlling an ally. It cannot activate elemental abilities for the recipient, the blood supply is consumed faster under heavy blood control, and an exhausted Fex may still lack the strength to maintain strings even after drinking enough blood to heal wounds. Representative uses include transferring Dalki blood between himself and Samantha, empowering Agent 11's Qi-based swordsmanship, and moving the needle between a puppet and himself as battlefield needs change. (Chapters 1011–1021, 1060, 1166, and 1289)

Vampire martial arts and blood techniques

Fex is trained from childhood in Sanguinis martial arts and the family's specialised puppet discipline. He recognises and teaches the Phantom Punch, preserves trained attack patterns even in the uncontrolled Bloodsucker state, and applies the same knowledge through puppets so that their physical potential is used more efficiently than their own movement would allow. This expertise is not unlimited mastery over any borrowed body: unfamiliar power systems still require cooperation from the user, and exceptionally strong opponents can overpower the movements he imposes. (Chapters 166–171, 179, 256–258, and 1289)

His general vampire techniques include blood swipes, blood ornament around a striking limb, limited blood hardening, and blood control that shapes detached aura and strings. Fex uses them less as isolated finishing moves than as reinforcement for his family ability—making a line resist fire, coating a web, or hardening a fist after restraint has created an opening. These actions consume blood and bodily energy, and repeated high-output combinations leave him unable to maintain the net or continue fighting without feeding. (Chapters 607, 699, 818, 1021, and 1166)

Celestial reinforcement and latest state

Quinn makes the aged Fex a dedicated follower by transferring 10,000 celestial points into his nearly empty body. The energy stabilises Fex's life, returns enough strength for active combat, and remains available so long as it is not spent all at once; it does not restore youth or recreate the physical reserve of his prime. When Quinn later abandons celestial status, existing followers retain their current points and no longer die because their link to him is severed, but Quinn permanently loses the ability to replenish them. Fex can therefore use the reinforcement against the portal creatures, yet each expenditure reduces a finite reserve and his body can still be knocked down or exhausted. (Chapters 1935–1936, 1983–1985, and 1992)

No chapter establishes that Fex develops a new celestial condition or restores the energy after the memory alteration. His last reported choice is to re-enter deep slumber after helping Andy, and the human transformation caused by Immortui's defeat makes every still-slumbering vampire irreversibly dead. Celestial reinforcement consequently does not survive as an accessible power in his latest state. (Chapters 2537 and 2541)

Power progression

Relationships

• Quinn: Fex first intends to trade Quinn's identity for leniency, but Quinn's repeated willingness to protect him makes Fex confess and name them blood brothers. Quinn rescues him from execution, gives him a place in the Tenth family, makes him a Royal Knight, and later uses celestial energy to let him participate in the decision about Erin. Their bond survives a millennium in Fex's conscious loyalty and leaves an emotional trace even after his memories are altered. (Chapters 255–264, 354–357, 465–496, 834, 1383, 1652–1653, 1935–1936, and 2104–2107)
• Silver: Silver is Fex's older sister, assigned as a knight partly so that she can retrieve and protect him. Fex resents being forced into the leadership role for which he believes she is better qualified, but admires her ability and trusts her enough to challenge her obedience to the Originals. She repeatedly risks her position to defend and rescue him, while his blood-weapon discovery becomes a source of pride rather than rivalry between them. (Chapters 140, 302–328, 354–357, 465–496, 834, and 872–902)
• Lee: Lee's ambition and adherence to vampire code make Fex's childhood role feel imposed and ultimately force him to condemn his own son. The execution crisis changes Lee's priorities; he later apologises and says Fex and Silver matter more than the code. Fex still refuses succession, but shares his blood-weapon method and leaves knowing that his father is proud of the life he chose. (Chapters 139–140, 354–357, 465–496, and 834)
• Samantha: Samantha first encounters Fex as an unknown fighter during a Dalki attack. Trusting his needle and battlefield instructions lets them combine her soul weapon with his restraint, and Fex later forgives her for exposing his vampire secret. They marry after the war, create the Vampire Corps with Ashley, and have Andy; her death to the Dhampirs becomes the grief that keeps Fex from slumber and drives his demand that Erin be killed. (Chapters 1015–1021, 1137–1139, 1426, and 1652–1653)
• Andy: Andy is Fex and Samantha's son and eventual successor in the Vampire Corps. He inherits the Sanguinis strings, learns a soul-weapon technique from Fex, and uses his bloodline to wake his father for Quinn's return. Fex entrusts him with the Corps and with the obligation to help Quinn, while Andy honours that legacy by protecting the organisation and arranging his father's final slumber. (Chapters 1652–1653, 1935–1936, 2336, and 2537)
• Peter: Fex initially treats Peter's ghoul hunger as a problem to conceal, using abducted students to feed him and placing human safety below secrecy. Their relationship becomes reciprocal when Peter volunteers to impersonate Quinn and travel to the vampire settlement, and Fex's guilt after Blip's death later motivates him to risk his own powers rather than let Peter die. (Chapters 162–178, 284–328, and 699–748)
• Ham: Ham is Fex's familiar and companion in his escape from the vampire world. He scouts, warns Fex about Silver's pursuit, and can conceal himself as an earring, while also questioning the risks Fex takes for Quinn. Fex's instruction that Ham protect himself and keep Quinn's identity secret if Fex dies marks one of the first times he places friendship above his original plan. (Chapters 139–140, 223–264, and 872–902)
• Blip: Blip treats Fex kindly after the Crows join the Cursed faction, but Fex kills him while poison drives a partial Bloodsucker transformation. Because Fex remembers the act, Blip's death becomes a lasting source of fear and guilt and changes Fex's response to later situations in which another ally may die. (Chapters 699–704 and 748)
• Erin: Fex's early attraction to Erin is shallow and sometimes possessive, but their later conflict is defined by Samantha's death during the Dhampir attacks. Fex waits beyond his physical prime for revenge, asks Quinn to kill the Dhampir Queen, and accepts celestial reinforcement so that he can take part in the decision and its consequences. (Chapters 166–178, 1652–1653, 1795, and 1935–1985)

Items

No separately catalogued item is assigned to Fex in the current manifest. His Blood-string Needle is a summoned blood weapon produced from his own crystal and is therefore described under Powers and abilities rather than as equipment. (Chapters 820 and 834)