The Green NinjaBook - 2013
When Lord Garmadon uses his mega weapon to turn back the clock and bring an ancient monster back to life, the Ninjago try to stop him, but end up being turned into children instead.
Publisher: New York : Scholastic/Penworthy, c2013
Characteristics: 32 p. : col. ill. ; 23 cm
Alternative Title: LEGO Ninjago, masters of spinjitzu (Television program)