SECRET MISSIONS. SPIN KICKS. SINISTER GHOSTS. Thirteen year-old Agent Darcy is one of the top students at the Bureau of Sneakery, where there are three rules every agent must follow: never make friends with an outsider, never speak of the Bureau, and never reveal your real name. Lately, Darcy has hit a rough patch: her rival, Agent Serena, keeps outdoing her. If things keep going this way, Darcy is convinced that no one will ever assign her a real mission. Ninja Steve's city, Ninjastoria, is the home of sword fights, throwing stars, and Tae Kwon Donuts. Unlike his genius older sister, twelve year-old Steve isn't the best ninja student. He'd rather be swinging a sword instead of taking notes in class. Steve, however, is about to learn that being a true ninja means far more than being able to use a sword. When Darcy is sent to Ninjastoria as an exchange student, it will turn both of their lives upside-down and raise all kinds of questions: What do the mecha-moles want? Who is the man in the gray mask? What do ninjas eat for lunch? And why is there a menacing tiger on the cover of this book? Time to read and find out!