A Vow of Blood and Night

Cecily Dalton has spent years hiding behind microscopes and midnight shifts—until a trauma patient with no pulse sits up on her table and unravels everything she thought she knew about science, about herself, and about the predators who rule the city after dark. Her blood holds the key to saving an entire dying species, but that makes her either a savior or a commodity. Caught between a centuries-old vampire prince and the elder who wants to cage her, Cecily must decide what she's willing to bleed for—and who deserves to ask.