Catboy, Owlette, and Gekko travel to Mystery Mountain in this 8x8 storybook based on a special episode of PJ Masks, the hit preschool series airing on Disney Junior! This special book features a sheet of stickers.

When Night Ninja captures PJ Robot, the PJ Masks go to Mystery Mountain to find a magical ring to save him! The fun continues with a sheet of PJ Masks stickers!

PJ Masks Frog Box / Entertainment One UK Limited / Walt Disney EMEA Productions Limited 2014