The world of LEGO(R) NINJAGO(R) is changing, and Master Wu, Kai, and the other Spinjitzu Masters must face an all-new challenge unlike any they have ever faced before . . . or have they? Will a forgotten adventure from their past give them the clues they need to face the future? Find out in this action-packed chapter book series that is illustrated throughout and features four all-new adventures of LEGO mighty Masters of Spinjitzu!

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