Kai, Ninja of Fire (LEGO Ninjago: Chapter Book): Scholastic, Farshtey, Greg, Scholastic: 9780545348270: Amazon.com: Books
Amazon.com: Lego Ninjago Kai
Amazon.com: Lego Ninjago Kai
Kai, Ninja of Fire & Jay, Ninja of Lightning (Lego Ninjago Masters of Spinjitzu Chapter Books): Various Authors: 9780545398220: Amazon.com: Books
Amazon.com: Lego Ninjago Kai
Kai: Ninja Of Fire (Turtleback School & Library Binding Edition) (Lego Ninjago): Farshtey, Greg: 9780606363686: Amazon.com: Books
Buchspielbox Lego Ninjago The Large Ninja Lexicon: with Exclusive Mini Figure + Ninja Sticker, Reference Book for Ages 6 and Above : Amazon.co.uk: Toys & Games