Inherited Damnation Series by Claire Ashgrove

One of eight children born to an ancient Celtic priestess and sired by a demonic incubus, Cian McLaine suffers from a centuries-old curse. Though his immortality allows him to enjoy the pleasures of mortal life, he is plagued by the desire to kill. As long as he doesn't fall in love he can keep the compulsion at bay.When Cian walked into her rare bookstore months ago, Miranda Phillips never imagined she'd lose her heart to the handsome playboy. Her reward for doing so was abandonment... moreOne of eight children born to an ancient Celtic priestess and sired by a demonic incubus, Cian McLaine suffers from a centuries-old curse. Though his immortality allows him to enjoy the pleasures of mortal life, he is plagued by the desire to kill. As long as he doesn't fall in love he can keep the compulsion at bay.When Cian walked into her rare bookstore months ago, Miranda Phillips never imagined she'd lose her heart to the handsome playboy. Her reward for doing so was abandonment. Cian left as mysteriously as he appeared, in the middle of the night with no explanation, no goodbye. Now he's back, and passion flares just as hot. But Cian has secrets. If Miranda is to survive, she must uncover the truth and free his darkened soul. less

Taran McLaine knows the agony of his incubus father's curse more intimately than his siblings. A century ago he murdered the only woman he ever loved. When he finds her alive, he's faced with the ultimate heartbreak. They have no chance at a future--he's done all he can to insure that on his day of judgment the ancestors will deny him a mortal life. Years ago, Solene Larouche embraced Taran and the dark curse that cloaked him... moreTaran McLaine knows the agony of his incubus father's curse more intimately than his siblings. A century ago he murdered the only woman he ever loved. When he finds her alive, he's faced with the ultimate heartbreak. They have no chance at a future--he's done all he can to insure that on his day of judgment the ancestors will deny him a mortal life. Years ago, Solene Larouche embraced Taran and the dark curse that cloaked him. She knew the risk she faced, but when Drandar pulls her back to life, she agrees to aid the demon and damn Taran to eternal suffering. One look at the man who held her heart so long ago, however, changes her mind. She must find a way to free him, even if it means condemning herself to eternity as Drandar's slave. As Samhain approaches, Solene and Taran conspire to destroy Drandar. But will their combined effort enable them to kill the incubus or will they be cast into Drandar's own special Hell and all hope of their renewed love marked for death? less