Secret World of the NinjaBook - 2015
"Follow the lessons of wise Sensei Wu, uncover the ancient history of Ninjago, and confront a host of evil forces. Unlock the mysteries of the Ninja's amazing powers and get the lowdown on their vehicles and weapons. But beware... only the bravest warriors have what it takes to complete this epic journey!"--Page 4 of cover.
Publisher: New York, New York : DK/Penguin Random House, 2015.
Edition: Library edition.
Characteristics: 94 pages : color illustrations ; 29 cm