Back in Action! (LEGO Ninjago: Reader with Stickers)

Master Wu returns in an all-new, original illustrated story! The ninjas' beloved Master Wu is back to his (literally) old self and is training the ninja again as the Monastery of Spinjitzu is being rebuilt. But when one of the workers accidentally activates an ancient and dangerous artifact, the ninja will have to spring into action to save the day! An awesome, original story that comes with one sheet of stickers!