Bound by Blood, Caught Between Two Hearts

Claire Lane wakes in a world that is not hers, bound to a blood-drinking system, and the only thing she asks it for is a route home. The system runs on blood and contracts, so getting stronger means feeding, and feeding brings her to the attention of the wrong household. Victor Shaw rules the vampires and is unstable in a way that everyone around him has learned to work around. He decides Claire belongs to him. Victor's younger brother is the gentler of the two and no less dangerous, and he carries a link to Victor that means every feeling that passes between Claire and the emperor arrives in him as well, at full strength. He experiences her fear, her anger, whatever else develops, without any of it being addressed to him. That resonance pushes his own attachment along faster than either brother would choose. Claire keeps working toward the way back while the two of them close in from opposite directions, and the closer the door home comes to opening, the more there is on this side to leave behind.