The evil Cloud of Monstrox has captured Clay! The NEXO Knights need your help to save their leader from the evil clutches of Monstrox. Help the heroes by solving the activities in this awesome new activity book and help stop the wicked Cloud from obtaining Forbidden Powers before time runs out! This action-packed activity book also comes with an exclusive minifigure so you can build your very own mini gargoyle and play along with the story!

Title from cover. Includes collectible minifigure pieces in acetate box attached inside front cover.