In the eagerly awaited sequel to Fly by Night, acclaimed storyteller Frances Hardinge returns to a vivid world rich with humor, danger, and discovery.

For generations, the Beaumont family has harbored a magical secret. They each possess a “savvy” – a special supernatural power that strikes when they turn thirteen. Grandpa Bomba moves mountains, her older brothers create hurricanes and spark electricity…and now it’s the eve of Mib’s big day.