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World of the Lupi
Series · 22
books · 2004-2025

Books in series

The New Kid book cover
#0.1

The New Kid

2013

This short story takes places in Rule's past, specifically January 10, 1976 during his Sophomore year of high school in a small town near Clanhome. It's a fun look into a time when Rule wasn't Lu Nuncio yet and was just learning how to integrate with humans. Reading Order: It's important to read these books in the order they were written, otherwise you might end up getting lost! Note: No ISBN as this is not a book for purchase. Short story (September 2013) ISBN: N/A (this is a story from Rule's youth and can be read at any point during the novels)
Tempting Danger book cover
#1

Tempting Danger

2004

The USA Today bestselling author tempts success in this stunning debut novel. National bestselling author Eileen Wilks draws readers into a bold new world where the magical and mundane co-exist in an uneasy alliance—and a cop balanced on her own knife-edged struggle is their only hope against a cold-blooded killer. Lily Yu is a San Diego police detective investigating a series of grisly murders that appear to be the work of a werewolf. To hunt down the killer, she must infiltrate the clans. Only one man can help her—a were named Rule Turner, a prince of the lupi, whose charismatic presence disturbs Lily. Rule has his own reasons for helping the investigation—reasons he doesn't want to share with Lily. Logic and honor demand she keep her distance, but the attraction between them is immediate and devastating-and beyond human reason. Now, in a race to fend off evil, Lily finds herself in uncharted territory, tested as never before, and at her back a man who she's not sure she can trust.
Originally Human book cover
#1.5

Originally Human

2012

Molly doesn't look her age. In fact, Molly never will, having already been around for centuries with no signs of wear. That's because Molly is a succubus—not demonic, but cursed. A victim rather than victimizer—and more than sympathetic to the gorgeous and naked man she finds hiding in the woods. Unlike Molly though, he has no memory of his past—only that he’s being hunted for reasons he can’t explain. Now they must both try and solve the riddle of his origin before his past—or even hers—reaches out of the darkness to destroy them. Originally published in the anthology Cravings .
Mortal Danger book cover
#2

Mortal Danger

2005

Former cop Lily Yu has her sister's wedding to attend, a missing magical staff to find, and now must deal with her grandmother's decision to return to the old country. Lily could turn to the man she's involved with for advice, but for all the passion that flares between them, she doesn't really know Rule Turner—she's just bound to him for life. Rule happens to be a werewolf, and Lily wonders just how far she can trust him.
Blood Lines book cover
#3

Blood Lines

2007

Touch-sensitive FBI agent Lily Yu and her werewolf bond-mate are recruited by the Secret Service to help identify elected officials who have accepted demonic pacts. But Lily must turn to fellow agent Cynna Weaver for help when Cynna's former teacher, a demon master, emerges as the main suspect behind the pacts. After a demon commits a gruesome murder, sorcerer Cullen Seabourne joins the team racing the clock to find the apprentice of evil who uses demons to kill. Cynna and Cullen must work together- a challenge indeed when each has good reason to ignore the desire simmering between them. But passion and events both spiral out of control as an ancient prophecy is fulfilled- and the lupi's greatest enemy sets her sights on total devastation.
Inhuman book cover
#3.5

Inhuman

2012

Certain people in Midland, Texas, are dying. All of them were Gifted, and all of them have been drained of their blood. Kai is a reluctant telepath with a skewed Gift—she sees thoughts instead of experiencing them. So, unlike other Midlanders, she can intuit that they have a “Guardian.” She also knows that the Guardian Nathan isn’t human. His true nature hasn’t been divined. Neither has hers. But when another one of the Gifted is found dead, Kai herself becomes a suspect. And only Nathan can save her. Previously published in On the Prowl.
Night Season book cover
#4

Night Season

2008

Pregnancy has turned FBI Agent Cynna Weaver's whole life upside down. Lupus sorcerer Cullen Seabourne is thrilled to be a father, but what does Cynna know about kids? Her mother was a drunk and her father abandoned his family. Or so she's always believed... As Cynna is trying to wrap her head around this problem, a new one pops up in the form of a delegation from another realm. They want to take Cynna and Cullen back with them- to meet her long-lost father and find a mysterious medallion. But when these two born cynics land in a world where magic is common-place and night never ends, their only way home lies in tracking down the missing medallion- one also sought by powerful beings who will do anything to claim it.
Good Counsel book cover
#4.2

Good Counsel

2008

This snippet takes place after Night Season (World of the Lupi, #4) and just before the free short story, Cyncerely Yours (World of the Lupi, #4.5). It’s more of a scene than a complete story, but I thought readers who’ve enjoyed the series might enjoy listening in on Cullen’s counselling session with Father Michaels.
Cyncerely Yours book cover
#4.5

Cyncerely Yours

2008

Ebook only short story offered on the author's website. Occurs after the events of "Night Season" (book 4).
Mortal Sins book cover
#5

Mortal Sins

2009

FBI agent Lily Yu is in North Carolina with her lover and mate, Rule Turner, Lu Nuncio of the Nokolai werewolf clan. He is there to take custody of his son from the boy's grandmother. It's a purely personal trip until Rule, in wolf form, finds three bodies in a shallow grave. They carry the stench of death magic, which makes the murders a federal crime. Lily takes charge of the investigation and soon realizes that nothing adds up- not the motives or the main suspect, who is behind bars when death strikes again. But murder, however bizarre, is an everyday affair for Lily, who was a homicide cop before being recruited into the FBI's Magical Crimes Division. A more personal shock arrives in the form of Rule's son's mother. Why would she now challenge Rule's plan to bring his son to live among the Nokolai? But family matters must take a backseat when the violence escalates, and there's no rhyme or reason for the next strike- by a killer who may not even be of this world.
Human Nature book cover
#5.5

Human Nature

2015

An paranormal fantasy novella from USA Today bestselling author Eileen Wilks’s World of the Lupi, where the darkest magic will leave its mark… FBI Agent Lily Yu is turning twenty-nine—a milestone she’s decidedly ambivalent about. But her birthday celebration is cut short when the naked, tattooed body of a man is found in a Northern California town. The victim was Steve Hilliard, and years ago, he was close friends with Rule Turner, prince of the lupi. At first it seems like a bizarre ritual killing, but there’s more than magic afoot: Steve wasn’t human. And the killer isn’t finished… Human Nature originally appeared in the anthology Inked. Includes a teaser for the upcoming novel Mind Magic, out November 2015.
Blood Magic book cover
#6

Blood Magic

2010

View our feature on Eileen Wilks’s Blood Magic.A new World of Lupi novel from "a true master of her craft" (Eternal Night) Lily Yu and Lupi prince Rule Turner have a bigger problem than their families not accepting their impending human/werewolf mixed marriage. A powerful ancient nemesis of Lily's grandmother has come to San Diego to turn the city into a feeding ground.
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#7

Blood Challenge

2011

Lily Yu and Rule Turner’s engagement announcement is stirring up ugly passions in the Humans First camp. There’s hate mail. Death threats. Lily’s car is vandalized. But professionally, things are going smoothly...until a lupus in Tennessee goes on a killing spree. Then Rule's brother, Benedict, catches a lovely intruder—twice. The first time she's sneaking around the home of the leader of Humans First. The second time, she sneaks into Nokolai Clanhome with a mysterious potion. It may not be possible to deal with the rapidly escalating situation the way Lily always has: through the law. Especially when she’s pulled off the case due to an alleged conflict of interest. Lily’s loyalties will be stretched to the breaking point when she discovers that the deaths in Tennessee were only the opening skirmish in an all-out war.
Death Magic book cover
#8

Death Magic

2011

DEATH MAGIC opens with Special Agent Lily Yu in Washington, D.C. with her fiancé—lupi prince Rule Turner—to testify before a Senate subcommittee about her role in the magical collapse of a mountain last month. She is not there to tell them about the strange legacy she carries from that event—or about the arcane bond between her and Rule—or what her boss in Unit Twelve of the FBI’s Magical Crimes Division is really up to. She sure won’t tell them that the lupi are at war with an Old One who wants to remake humanity in her own image. Lily is managing the conflict between her duty as an officer of the law and the need for secrecy pretty well . . . until the rabidly anti-magic senator who chairs that committee is murdered. The line between right and wrong, always so clear to her, becomes hopelessly blurred as events catapult them all towards disaster, and prophecies of a cataclysmic end to the country she loves and serves—and to the entire race of lupi—seem well on their way to being fulfilled.
Human Error book cover
#8.5

Human Error

2011

In this urban fantasy novella set in New York Times bestselling author Eileen Wilks’s world of the lupi, a family holiday provides respite from an ongoing war—but not without a few skirmishes of its own... Benedict would do anything to make Arjenie happy, even spend Christmas meeting her large, Wiccan, entirely human family. As a lupi warrior who’s lived most of his life at Clanhome, Benedict is more than a little nervous. He isn’t used to fitting in with humans, let alone a family who celebrates the Wiccan holiday of Yule. Benedict even asked his brother for advice about clothes, hoping to create the right impression. So it's a shame that things go wrong from the moment he steps out of the car . . . Originally found in anthology Tied with a Biow
Mortal Ties book cover
#9

Mortal Ties

2012

Eileen Wilks' novels of the Lupi have drawn readers into a seductive world of action, suspense, and passion. Now, FBI agent Lily Yu tracks a traitor into the darkest shadows yet… FBI agent Lily Yu is living at Nokolai Clanhome with her fiancé, lupi Rule Turner, when an intruder penetrates their territory, stealing the prototpye of a magical device the clan hopes will be worth a fortune—if a few bugs can be worked out . . . But the protoytpe can be dangerously erratic, discharging a bizarre form of mind magic—and it looks like the thief wants it for that very side effect. Worse, whoever stole the device didn’t learn about it by accident. There’s a Nokolai traitor in their midst. Lily and Rule have to find the traitor, the thief, and the prototype. One job proves easy when the thief calls them—and his identity rocks Rule’s world. As they race to recover their missing property, they find Robert Friar’s sticky footprints all over the place. Robert Friar—killer, madman, and acolyte of the Old One the lupi are at war with—an Old One whose power is almost as vast as her ambition to rock the entire world . . .
Ritual Magic book cover
#10

Ritual Magic

2013

In Eileen Wilks’s new Novel of the Lupi, FBI agent Lily Yu is about to confront a power even darker than magic… On her 57th birthday, Lily’s mother suddenly loses all memory beyond the age of twelve. Lily knows her mother was attacked by something more than magic. More . . . and darker. When Lily and Rule discover that others suffered the same, mysterious loss—at the same time on the same night—their investigation into the darkness begins. Joining them is someone Lily never thought she’d see again: Al Drummond, who once tried to destroy her. He also happens to be dead. But the mysterious attacks were caused by a power strong enough to affect matters beyond the world of the living. With some victims losing years of memory and others their lives, Lily must discover what on earth—or beyond—connects them.
Unbinding book cover
#11

Unbinding

2014

In the newest Novel of the Lupi, the human and elven worlds are both about to come under attack… After questing through the sidhe realms with her ex-hellhound lover, Nathan, Kai Tallman Michalski has finally returned home. But she knows Nathan will eventually be called back to serve his queen—and Kai will have to decide whether to enter her majesty’s service as well. Sure, the job comes with great bennies, but there’s one big downside: she would have to swear absolute fealty to the Queen of Winter. For now, though, Kai is glad to be home, and glad that Nathan completed his mission for his queen with surprising ease. But what seemed to be a quick conclusion turns out to be anything but. The two of them helped thwart the sidhe god of chaos—and he is not happy about that. He’s got plans for them. Plans, too, for the sidhe who killed him some three millennia ago. Nor has he abandoned his plans for Earth, as they learn when chaos begins bursting out all over...
Mind Magic book cover
#12

Mind Magic

2015

FBI agent Lily Yu’s mind is a dangerous place to be in the latest Novel of the Lupi… Thanks to the mindspeech lessons she’s receiving from the black dragon, Lily is temporarily benched from Unit Twelve—until her brain acclimates and the risk of total burnout passes. At least she has her new husband, lupi Rule Turner, to keep her occupied. But when her mentor calls in a favor and sends Lily to a murder scene, she’s suddenly back on active status—despite the hallucinations she can’t keep at bay. With one touch, Lily knows the man was killed by magic, but her senses don’t warn her how far the conspiracy goes… A shadowy force within the government wants to take Unit Twelve down, and they don’t mind killing to achieve their goal. With none of her usual resources, Lily is up against impossible odds–because with her mind in disarray, she can’t trust anything she sees.
Dragon Spawn book cover
#13

Dragon Spawn

2016

The New York Times bestselling author of Mind Magic returns as FBI agent Lily Yu gets some very bad news… Lily learns she was right. Tom Weng—a powerful sorcerer allied with the Old One who keeps trying to take over the world—is still alive. But that's not the worst. Weng is a dragon spawn, the product of a botched hatching given a human form in an attempt to keep him from going mad. A failed attempt. Meanwhile, Lily’s husband Rule is facing a Challenge to the death. Then there’s the possible reappearance of another sorcerer. But none of that matters when their enemy strikes out of nowhere in the worst way possible. Lily must face a nightmare and return to a place she never wanted to see again. The place where she died…
Dragon Blood book cover
#14

Dragon Blood

2018

The battle against a vengeful goddess reaches a climactic point as Lily Yu must now face the ultimate challenge in a dangerous new realm—without her husband, Rule... When a mission to rescue five children stolen by an Old One falls apart under the assault of a demon prince, Lily wakes up in a strange reality—and is immediately taken captive by the dragon spawn who rule there. Jumping worlds has fractured her party, and Cynna is her only companion. Although the clock is ticking, time works differently, and Lily has miraculously gained a week. That means seven days to free herself, find Rule and the others, rescue the children, and make it home alive. All before the dragon spawn holding her hostage trade her to the Old One. It would almost be doable if this weren’t Lóng Jia—also known as Dragonhome: the birthplace of dragons.
The Codex book cover
#15

The Codex

2025

(No pub date yet)

Author

Eileen Wilks
Eileen Wilks
Author · 44 books

Eileen Wilks’ first book, a Silhouette Desire published in 1996, hit the USA Today Bestseller List and was nominated for Romantic Times' Best First Short Contemporary award. Since then, her books have appeared consistently on national bestseller lists. With thirty two books in print and novellas in nine anthologies, she has been a finalist in the prestigious Rita Awards three times, as well as receiving several nominations from Romantic Times, including one for Career Achievement in Series Romantic Suspense. Each book in her World of the Lupi series gains a larger audience. It was originally sold in the Romance section of bookstores, but more and more you will be able to find copies cross-shelved under Sci-Fi and Fantasy as the popularity of the series grows! Eileen has lived in the West Texas town of Midland, TX for over 30 years—three years as a young teen, and the remaining years since she moved back here as an adult. When she first started writing over 10 years ago, it hit her like the first drink for an alcoholic . . . or the first kiss for Romeo and Juliet. She came to writing romance in a roundabout way. Having read and loved science fiction for years, that’s where she first tried her hand when the writing bug bit. Somehow her stories always ended up having a strong romantic subplot, but she hadn’t read a romance since the early 80’s and didn’t think “those little books” were her kind of stories. But when a friend in her critique group began working on a romance novel, Wilks decided she needed to give the genre another try. She asked her friend to recommend some titles—and quicker than you can say “Jayne Ann Krentz,” she fell in love. The genre had been busy growing up while she wasn’t watching. These days, with romances comprising over 50% of the mass market books published in the U.S., there are romances to appeal to almost every taste—historicals, paranormals and contemporaries that range from romantic suspense to romantic comedy, from inspirational to sizzling. Eileen covered a lot of territory before coming home to Midland, having lived in Canada and Venezuela as well as twelve U.S. cities in five states. Profile taken from the author's site with her permission.

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