Arcane Crossbreeds Series by Amanda Vyne

Gabrial Ferrar is a House Marshal, an enforcer of the laws of his people. But when his investigation into missing young girls lead him to a dark alley his path crosses with an incredible crossbreed whose blood promises him a lifetime of pleasure he’s willing to sacrifice everything to gain. Yet her past may be the key to stopping a deranged killer from taking the life of another little girl - but only if he can gain her trust before time runs out... moreGabrial Ferrar is a House Marshal, an enforcer of the laws of his people. But when his investigation into missing young girls lead him to a dark alley his path crosses with an incredible crossbreed whose blood promises him a lifetime of pleasure he’s willing to sacrifice everything to gain. Yet her past may be the key to stopping a deranged killer from taking the life of another little girl - but only if he can gain her trust before time runs out. 
 Kel Sheridan works for a private agency called Incog, a vigilante organization that deals with the dark underbelly of the Arcane. While investigating a local blood ring she finds herself uncontrollably drawn to a stranger and in the time it takes to press her lips to his, he's made her his blood mate. Kel is furious, especially when she discovers he is a son of the House that turned her out on the streets as a child for not being of pure blood. When another little girl disappears she finds herself needing the strength of the unwanted blood bond between them to face the truth of her past to catch their killer. less

The last thing Katya Schaffer saw before waking up a subject in a genetics lab was Raife’s face. So when he suddenly shows up in her cell a year later to save her, she doesn’t trust him. She’s no longer the sweet and innocent girl who worshipped him. After being subjected to painful experiments, she’s acquired some mad skills, even if she can’t exactly control them... moreThe last thing Katya Schaffer saw before waking up a subject in a genetics lab was Raife’s face. So when he suddenly shows up in her cell a year later to save her, she doesn’t trust him. She’s no longer the sweet and innocent girl who worshipped him. After being subjected to painful experiments, she’s acquired some mad skills, even if she can’t exactly control them. She doesn’t understand why they turned her into an abomination or why so many factions of the Arcane risked public exposure to capture her, but she intends to find out. Unfortunately, Raife and his team of agents are her only hope of surviving long enough to get her answers. Twenty years ago, Agent Raife Merrick came to San Francisco to die. He hadn’t intended to save a sweet little blood-sucker from certain death and he sure as hell hadn’t meant to stick around and watch her grow into a beautiful woman. Yet fate obviously hadn’t given a damn what he wanted and it definitely didn’t care about the future of that woman now...but Raife did. Despite her distrust, he’s willing to do anything to protect her and finally make her his. less

Two halves of whole, rare Drachon twins Taggart and Vincent Jennings once shared the weight of being the salvation of their people until Vincent disappears, leaving Tag to bear their people’s disappointment alone. Now Vincent is back, demanding Tag help him rescue the one woman neither can live without but they’re going to have to repair their own relationship if they have any hope of convincing her to take a chance on them. Years ago Dr... moreTwo halves of whole, rare Drachon twins Taggart and Vincent Jennings once shared the weight of being the salvation of their people until Vincent disappears, leaving Tag to bear their people’s disappointment alone. Now Vincent is back, demanding Tag help him rescue the one woman neither can live without but they’re going to have to repair their own relationship if they have any hope of convincing her to take a chance on them. Years ago Dr. Brit Mahoney helped develop genetic research that had the potential to enslave the entire Arcane to the Triumvirate and she sacrificed everything she loved to destroy it. Determined to never allow her emotions to make her vulnerable again, she’s buried herself in science, refusing to allow herself to succumb to her desire for Taggart Jennings. Then his estranged twin appears and their combined hormones ignites a mating heat that is even more than she can withstand. When it becomes obvious Brit’s research was resurrected with fatal consequences, Vincent must reveal the horrible truths of his past to give them any hope of a future. less