Another Jekyll, Another Hyde by Daniel and Dina Nayeri
Target audience: Young Adult
Nicola is a demon and immortal as long as she gets the souls she needs, but her immortality is at risk. She must find another appropriate human vessel for her son, Edward, whom she murdered centuries before, thereby ensuring the continuity of her line. Thomas is the son of a New York banker with a very precise life plan, he's going to be a Manhattan lawyer. His well ordered existence spirals into depression after Belle Faust, his gorgeous girlfriend, dumps him and then promptly disappears. Things get stranger still when out of the blue his dad marries the Faust family's French governess, Nicola Vileroy. One night at a club, Thomas tries a designer drug and suddenly his life spins utterly out of control. He starts having blackouts and hearing a strange voice in his head. Thomas realizes in horror that his blackouts coincide with a series of hate crimes at his school, that his new stepmom is even more sinister than he thought and that he as Edward attacked the kids. Loosely based on the Jekyll and Hyde story, it primarily focuses on Thomas and his struggle. The preludes to each chapter catch the reader up on Nicola's past and current motivations. The fast pace and suspense will keep readers interested until the twist at the end. There is a confusing attempt to include a bit of backstory but the story stands better on it's own. Readers may want to go back and read the previous titles in this series. Deliciously gothic and hard to put down, this book is a truly satisfying read.