Cruel illusions
(Book-YA)

Eighteen-year-old Ava Perry leaves the safety of her foster care home and joins a troupe of vampire-hunting magicians, believing that she finally has her chance to discover the truth behind her mother's death.

"Since a vampire murdered her mother, Ava has survived foster home after foster home, determined to get revenge. It's been ten years since anyone has seen a vampire-- until Ava stumbles across a hidden magic show where she witnesses impossible illusions. Ava sneaks backstage and catches them in acts they can't explain. But they've been waiting for her: they are part of an ancient secret society with true magic, and Ava has the same power in her blood that they do. If she joins them they will help her avenge her mother. But if she wants to keep the power they offer, she must participate in a sinister and dangerous competition where illusion and reality blur-- and the stakes are deadly."--,Adapted from jacket.