Unbound Series by Rachel Vincent

Bound by blood, condemned by fate. As a bloodtracker, Liv is extremely powerful. And in a world where power is a commodity that can get you killed, Liv's learnt to survive by her own rules. Rule number one? Trust no one. But when a friend's daughter goes missing, Liv is bound by a potent magical oath. She can't rest until the child is safe. And that means trusting her dangerous ex, Cam... moreBound by blood, condemned by fate. As a bloodtracker, Liv is extremely powerful. And in a world where power is a commodity that can get you killed, Liv's learnt to survive by her own rules. Rule number one? Trust no one. But when a friend's daughter goes missing, Liv is bound by a potent magical oath. She can't rest until the child is safe. And that means trusting her dangerous ex, Cam. A sinister prophecy tells that she and Cam will be the death of each other, yet Liv's tired of being a slave to destiny. She's ready to play the forces controlling her world at their own game. No matter what the cost. less

Kori Daniels is a shadow-walker, able to travel instantly from one shadow to another. After weeks of confinement for betraying her boss, she's ready to break free of the Tower syndicate for good. But Jake Tower has one final job for Kori, one chance to secure freedom for herself and her sister, Kenley, even if it means taking it from someone else.… The job? Recruit Ian Holt—or kill him... moreKori Daniels is a shadow-walker, able to travel instantly from one shadow to another. After weeks of confinement for betraying her boss, she's ready to break free of the Tower syndicate for good. But Jake Tower has one final job for Kori, one chance to secure freedom for herself and her sister, Kenley, even if it means taking it from someone else.… The job? Recruit Ian Holt—or kill him. Ian's ability to manipulate the dark has drawn interest from every syndicate in the world, most notably an invitation from Jake Tower. Though he has no interest in organized crime, Ian accepts the invite, because he's on a mission of his own. Ian has come to kill Tower's top Binder: Kori's little sister. Amid the tangle of lies, an unexpected thread of truth connecting Ian and Kori comes to light. But with opposing goals, they'll have to choose between love and liberty…. less

The Tower Syndicate will fall... The secret daughter of the head of an infamous Skilled crime family, Sera Brandt has hidden her past, her potential and especially her powers. But when a tragedy strikes her other family, Sera needs justice. And the only way to get it is to reveal her heritage–including a rare Skill–and take the reins of the Tower Syndicate from her cunning and malicious aunt. If he can figure out how... Kristopher Daniels might have the answer... moreThe Tower Syndicate will fall... The secret daughter of the head of an infamous Skilled crime family, Sera Brandt has hidden her past, her potential and especially her powers. But when a tragedy strikes her other family, Sera needs justice. And the only way to get it is to reveal her heritage–including a rare Skill–and take the reins of the Tower Syndicate from her cunning and malicious aunt. If he can figure out how... Kristopher Daniels might have the answer. He's fought the syndicate to protect his sisters, but he'd never realized just how close to the new heir he needed to get.... And if they can survive Neither is used to trusting. But there's something between them that can't be ignored. And so Sera is on the run with a man she can't figure out, a target on her back and the new knowledge of just how powerful she really is.... less