Together with his friends Carly, Matt, and Umberto, Derek has fun learning about all the cool aspects of ninja culture.

When someone starts vandalising their school with graffiti of a mischievous troll-like figure, these ninjas-in-training are convinced they'll be able to crack the case.

But it turns out that being a ninja is a lot more work than they thought, and this adventure brings about new opportunities for Derek to embarrass himself.

For once, can he be the hero that saves the day?

About the Author

Janet Tashjian is the author of the popular My Life series including My Life as a Book, My Life as a Stuntboy, My Life as a Cartoonist, My Life as a Joke, and My Life as a Gamer, as well as the Einstein the Class Hamster series, all illustrated by her son, Jake Tashjian. They live in Studio City, California.