Catboy, Owlette, and Gekko race to beat Night Ninja to the top of Mystery Mountain in this Level 1 Ready-to-Read based on PJ Masks, the hit preschool series airing on Disney Junior! The PJ Masks must stop Night Ninja from stealing a magical ring hidden at the top of Mystery Mountain. Working together is the heroes’ best option to stop Night Ninja from getting the ring and gaining more power. But is Catboy too busy racing ahead to help his friends? This paperback edition comes with two sheets of stickers! PJ Masks © Frog Box / Entertainment One UK Limited / Walt Disney EMEA Productions Limited 2014