Hoping to bring back her father and the other missing royals of Cello, Princess Ko gathers a group of teens, each with a special ability, including Elliot, whose forbidden communications with Madeleine may be the key to traveling across worlds.

The Cracks in the Kingdom 2015, Scholastic on Brilliance Audio

ISBN-13: 9781501249983

MP3 format

The Cracks in the Kingdom 2014, Arthur A. Levine Books

ISBN-13: 9780545397384