"What did it mean to be a ninja or a samurai? Did they really have special abilities? What was life like for them in ancient Japan? Find out the answers to these questions and more as Jack and Annie track the facts behind some of history's most intriguing and secretive figures"--Amazon.com.

After receiving a message that Zane is alive on a secret island, Kai, Cole, Jay, and Lloyd journey to the island and engage in a dangerous tournament in order to find their friend.

With their sensei by their side, the ninjas go to the Underworld and face Lord Garmadon to obtain the final golden weapon.

The journal of Master Wu reveals the secrets of the ancient martial art and philosophy of spinjitzu.

Danny Dragonbreath knows girls are trouble, but the new foreign exchange student, Suki the Salamander, is beyond trouble. Not only has she reduced his best friend, Wendell, to a blithering lovesick tadpole, but she's also the object of an elaborate ninja frog kidnapping plot. When Suki the salamander--the new foreign exchange student--is being stalked by ninja frogs, Danny, Wendell the iguana, and Suki travel to Great-grandfather Dragonbreath's home...

The PJ Masks must solve riddles and race up Mystery Mountain in order to keep Night Ninja from getting the powerful Ring of Ninjability.

When Ruby's homesickness spreads to other students at Master Willow's School for Ninjas, she uses all of the skills she has learned to help them feel better. Includes instructions for making a dragon toy two different ways.

"In this illustrated chapter book, the circus is coming to town, and Nelson has a chance to show off his amazing ninja skills! But what will he do when big trouble arrives at the big top?"--Publisher's website.

"Join Raph, Leo, Donnie, Mikey, and April O'Neil in this exciting and hilarious adventure with an important message about learning to be comfortable speaking up. A new batch of mutant villains are in town and they've mastered the art of noiseless theft! The TMNT are powerless to stop them until they realize someone close to them shares a history with the bad guys: April! Will she be able to overcome a case of stage fright and save the day?"--Provided...

In this fantastic new addition to the So You Want to Be a... series Kate, Eddie, and Angus are obsessed with ninjas. After watching endless ninja competitions on YouTube, the plucky adventurers dream of dressing in black and making themselves invisible. With padded shoes to silence their steps and throwing stars hidden in their pockets, the friends travel back in time to 1789 Japan to discover what it takes to be a ninja. Under the guidance of the...