Griever's Mark Series by Katherine Hurley

Astarti’s master controls her through a Leash, a bond of energy anchored deep within her. Despite being one of the few remaining Drifters, able to manipulate the energy world, she cannot break free. She knows her fate: she will serve until she dies, at which point her master will harvest her energy to augment his own. Oh, yes, she’s done some bad things in her master’s name. She’s not asking for forgiveness. She expects you to hate her... moreAstarti’s master controls her through a Leash, a bond of energy anchored deep within her. Despite being one of the few remaining Drifters, able to manipulate the energy world, she cannot break free. She knows her fate: she will serve until she dies, at which point her master will harvest her energy to augment his own. Oh, yes, she’s done some bad things in her master’s name. She’s not asking for forgiveness. She expects you to hate her. What she doesn't expect is Logan, a man meant to be her sworn enemy. A man with secrets as dark as her own. less

Who is Logan’s father? The question has been whispered behind his back all his life. He’s ignored it, forced himself not to care, but when Belos starts demanding an answer to this very question, it takes on a new and disturbing significance. As the race to answer this question begins, others rise in its wake, unearthing a mystery that could shake the very foundation of Earthmaker life, a mystery that could shake the whole world apart. But Astarti has more immediate concerns... moreWho is Logan’s father? The question has been whispered behind his back all his life. He’s ignored it, forced himself not to care, but when Belos starts demanding an answer to this very question, it takes on a new and disturbing significance. As the race to answer this question begins, others rise in its wake, unearthing a mystery that could shake the very foundation of Earthmaker life, a mystery that could shake the whole world apart. But Astarti has more immediate concerns. Logan is in grave danger, and she’s desperate to get to him before he is destroyed--body, mind, and soul. less

As the growing conflict forces Logan to embrace his newly discovered heritage, he fights to control a power he has long kept buried—a power that threatens everything he has tried to make of himself. Desperate to spare Astarti yet another burden, he tries to hide his crumbling control, but she has long since learned to recognize a lie. As Logan becomes a danger to himself and those around him, Astarti must find a way to help him, even if he doesn’t want it... moreAs the growing conflict forces Logan to embrace his newly discovered heritage, he fights to control a power he has long kept buried—a power that threatens everything he has tried to make of himself. Desperate to spare Astarti yet another burden, he tries to hide his crumbling control, but she has long since learned to recognize a lie. As Logan becomes a danger to himself and those around him, Astarti must find a way to help him, even if he doesn’t want it. Unfortunately, Astarti has other problems. Good and evil wear ever-shifting faces, the right course of action grows increasingly unclear, and the stakes are only getting higher. In this final installment of The Griever’s Mark trilogy, Astarti must decide, once and for all, what she stands for--and what she is willing to sacrifice. less