Everything changes for orphaned Jan when his beloved uncle, Gustav - anatomist, natural scientist and aspiring alchemist - enlists his help in a quest to create a life-generating serum. To test the serum, they must follow a set of ancient instructions and play a dangerous game of bringing the inanimate to life... When Gustav dies suddenly, it's up to Jan to continue his work - little does he know that his beautiful, calculating aunt dreams of using the serum for her own purposes - eternal life. Under the facade of her grief, she convinces Jan they must move from Vienna to Prague, and when she mysteriously disappears, Jan searches for her. In the plague-ridden ghettos and the court of the mad Emperor Rudolf, he must pit his wits against an extraordinary cast of characters and events. His only ally is Zuzana, a girl with secrets of her own. Set against the vivid backdrop of 16th century Prague and the equally breathtaking Vienna, a magical, historical adventure from a talented author.