In a steam-fueled world where vampires once ruled the aristocracy, a dangerous conspiracy threatens to topple the queen, and the duke of Malloryn knows his nemesis has finally returned to enact his plans of revenge. Malloryn can trust no one, and when incriminating photographs surface - of an enemy agent stealing a kiss from his wife - he is forced to question just why his wife, Adele, trapped him into marriage. Is she an innocent pawn caught up in a madman's games, or is she a double agent working against him? The only way to discover the truth is to seduce her himself....

First rule of espionage: Don't ever fall in love with your target. Five years ago, Gemma Townsend learned the hard way what happens when you break this rule. She lost everything. Her mentor's trust. The man she loved. And almost her life. Love is a weakness she can never afford again. When offered a chance at redemption, the seductive spy is determined to complete her assigned task: to track down a dangerous assassin known as the Chameleon, a mysterious killer sent after the queen, whose identity seems to constantly change.

Ava McLaren is tired of being both a virgin, and a mere laboratory assistant for the Company of Rogues. When a baffling mystery rears its head, it presents her with the opportunity to work a real case...and perhaps get a taste of the passion that eludes her. Blue bloods are dying from a mysterious disease, which should be impossible. Ava suspects there's more to the case than meets the eye and wants a chance to prove herself. 

Entire families have gone missing in the East End. When Caleb Byrnes receives an invitation to join the Company of Rogues as an undercover agent pledged to protect the crown, he jumps at the chance to find out who, or what is behind the disappearances. Hunting criminals is what the darkly driven blue blood does best, and though he prefers to work alone, the opportunity is too good to resist. The problem? He's partnered with Ingrid Miller, the fiery and passionate verwulfen woman who won a private bet against him a year ago. 

When her beloved father was assassinated, Lady Aramina swore revenge. The man responsible is well beyond her grasp, but his dangerously seductive heir, Leo Barrons, is fair game. When Mina obtains evidence proving that Leo is illegitimate, she has the means to destroy both the killer and his son, a man who troubles her heart and tempts her body. A woman of mystery, Mina has long driven Leo crazy with glimpses of a fiery passion that lurks beneath her icy veneer.

Isa McQuiston is caught between two worlds. Strange creatures are attacking her people, their injuries beyond her medical expertise. More than one fisherman has been tossed ashore by the waves, drained of blood, a severed tentacle piercing his flesh. To find answers, she must forge a cautious alliance with the outsider making inquiries...even if he does present an almost irresistible temptation.    

Piloting a stolen dirigible, Lord Rathsburn uncovers an unlikely stowaway, Lady Olivia. Arriving together at a crumbling castle, an impossible task is set before them: cure the count's guardsmen. Amidst their fake marriage, a very real growing attraction, dying guardsmen, and escalating hostilities, Lady Olivia and Lord Rathsburn are thrust deep into the world of international medical espionage from which there may be no return.

London, 1881. Miranda Ellis is a woman tormented. Plagued since birth by a strange and powerful gift, she has spent her entire life struggling to control her exceptional abilities. Yet one innocent but irreversible mistake has left her family's fortune decimated and forced her to wed London's most nefarious nobleman.... Lord Benjamin Archer is no ordinary man. Doomed to hide his disfigured face behind masks, Archer knows it's selfish to take Miranda as his bride.

Jack Talent is tormented by the demons of his past. Though Jack loves his position in the SOS, he cannot forget what was done to him. And so he hunts down the remaining demons that tortured him and metes out his own brand of justice as the Bishop of Charing Cross. The only thing that soothes him is his secret visits to fellow agent Mary Chase. But while something about Mary calms him, she is also his greatest torment, for she is a reminder of his worst crime - the night he lost his soul by taking her human life.

Holly Evernight belongs to a very special family of inventors. They have nobly served the Society for the Suppression of Supernaturals for generations. And Holly may have the most special creative powers of them all. But her skills are about to be tested as she tries to save the life of a half-man-half machine whose clockwork heart is ticking down to the bitter end.... William Thorne was a rebel, a hired assassin for the SOS's greatest rival, before he was taken, tortured, and transformed.

In a laboratory behind the walls of a castle, Natalia Zakharova Kinross, Lady of Kinlarig, hides her many secrets. But for how much longer? For not only is a medical miracle embedded within her skin, a mythological dragon prowls the grounds. And there are men who will stop at little to lay claim to both.

Shunned for her odd eyes and an unnerving habit of slipping into shadows, Lady Colleen Stewart refuses to be caged - should she decide to marry, it'll be for love and to a man of her choice. After all, she'd rather be racing over rooftops than waltzing across ballroom floors. So, when the only man to ever tempt her heart invites her on a covert mission, she leaps into danger.

Branded a traitor by her people, Shea and her warlord - the fiercely dangerous Fallon - travel to the Pathfinders' seat of power at her father's request, hoping to form an alliance despite the distrust between them. It doesn't take long before Shea and Fallon realize something is dangerously wrong in the place she once called home. Ancient, deadly creatures - gone for hundreds of years, once again walk the lands, awakened from a deep sleep. Worse, it seems the Pathfinders are keeping a secret - one that could destroy them all.  

As Prime magic users, Catalina Baylor and her sisters have extraordinary powers - powers their ruthless grandmother would love to control. Catalina can earn her family some protection working as deputy to the Warden of Texas, overseeing breaches of magic law in the state, but that has risks as well. When House Baylor is under attack and monsters haunt her every step, Catalina is forced to rely on handsome, dangerous Alessandro Sagredo, the Prime who crushed her heart.

The pathfinder, Shea, has chosen to make a place for herself among her former captors, leaving behind her people and the life she once knew. However, not all welcome this outsider in their midst. Shea will find that surviving alone in the wilderness is child’s play next to navigating the politics that come with her new position. Especially when it becomes evident that there are those out for her blood.