Masters of Spinjitzu: a new force to save the world! The world of Ninjago is in terrible danger. An army of skeletons has invaded from the underworld, under the command of the evil Lord Garmadon. Their goal: capture the Four Weapons of Spinjitzu, artifacts so powerful it is said no one being can wield them all at once. Now Garmadon's brother, the heroic Sensei Wu, must gather four young men and train them in the ways of the ancient art of Spinjitzu....

Jay, a member of Sensei Wu's team of ninja warriors is an inventor at heart and has an unfailing sense of humor--even in the toughest battles. But if he keeps laughing at danger, will the joke backfire on him?

"Shunned by everyone for being the son of an evil warlord, a teenager seeks to defeat him with the help of his fellow ninjas."

The Teenage Mutant Ninja Turtles are leaving the sewer for the time and discovering action, adventure, aliens, and the awesomeness of pizza.

The city needs heroes. Darkness has settled over New York City as Shredder and his evil Foot Clan have an iron grip on everything from the police to the politicians. The future is grim until four unlikely outcast brothers rise from the sewers and discover their destiny as Teenage Mutant Ninja Turtles. The Turtles must work with fearless reporter April O'Neil and her wise-cracking cameraman Vern Fenwick to save the city and unravel Shredder's diabolical...

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Getting the facts behind the fiction has never looked better. Track the facts with Jack and Annie!!
 
When Jack and Annie came back from their adventure in Magic Tree House #5: Night of the Ninjas, they had lots of questions. What did it mean to be a ninja or a samurai? Did they really have special abilities?...

Naruto is a young shinobi with an incorrigible knack for mischief. He's got a wild sense of humor, but Naruto is completely serious about his mission to be the world's greatest ninja! With only a few matches left to be fought in the preliminaries to the third portion of the Chunin Ninja Selection Exams, the bout between Gaara and Rock Lee begins. And in preparation for the finals, Naruto struggles to harness the power of the Nine-Tailed Fox chakra...

After the defeat of their old arch nemesis, The Shredder, the Turtles have grown apart as a family. Master Splinter, their sensei, is struggling to keep them together. He becomes worried when strange things begin brewing in New York City. Tech-industrialist tycoon Max Winters revives four ancient stone warriors and enlists the help of the foot clan to help capture ancient monsters.