First in the Kronos Chronicles from the bestselling author: "[Readers] who enjoy literary fantasy are likely to savor Marie Rutkoski's debut novel." — The Wall Street Journal

Bank Street Best Children's Book of the Year

Petra Kronos has a simple, happy life. But it's never been ordinary. She has a pet tin spider named Astrophil who likes to hide in her snarled hair and give her advice. Her best friend can trap lightning inside a glass sphere. Petra also has a father in faraway Prague who is able to move metal with his mind. He has been commissioned by the prince of Bohemia to build the world's finest astronomical clock. Petra's life is forever changed when, one day, her father returns home—blind. The prince has stolen his eyes, enchanted them, and now wears them. But why? Petra doesn't know, but she knows this: she will go to Prague, sneak into Salamander Castle, and steal her father's eyes back. Joining forces with Neel, whose fingers extend into invisible ghosts that pick locks and pockets, Petra finds that many people in the castle are not what they seem, and that her father's clock has powers capable of destroying their world.

"A heady mix of history and enchantment . . . Infusions of folklore (and Rutkoski's embellishments of them) don't slow the fast plot but more deeply entrance readers." — Publishers Weekly (starred review)

"For those who like their fantasy with a splash of history, or their history with a twist of magic, this book is ideal." — School Library Journal