The bone season by Samantha Shannon

19-year-old Paige is working in the criminal underworld of Scion London. Her job: to scout for information by breaking into people’s minds. It is raining the day her life changes for ever. Attacked, drugged and kidnapped. She is assigned to Warden, a Rephaite. He is her master. Her trainer. Her natural enemy. But if Paige wants to regain her freedom she must allow herself to be nurtured in this prison where she is meant to die.