Reintroducing a bestselling, magical medieval mystery from Newbery Medalist, Avi! The release of this delightful page-turning adventure in Scholastic's esteemed Gold paperback line builds anticipation for a thrilling third book in the Midnight Magic trilogy, coming in 2022! Night after night, a ghost appears in the royal castle of Pergamontio, terrifying the princess. Mangus the Magician doesn't believe in ghosts, but still the King charges him with finding this one and freeing his daughter from its torment. If he can't, Mangus will pay with his life. The magician's only hope is his faithful, street-smart servant boy, Fabrizio, who must solve the mystery of the ghost using logic and reason -- and a bit of magic of his own.