Superstar Spies is based on characters by Robert Rodriguez.

Carmen Cortez likes the help of British Spy Kid Maya Sinclair but Juni Cortez is suspicious of her.

Carmen and Juni are assigned guard duty for a famous pop star The pop star's talents are the result of a powerful gem that has now fallen into the hands of an evil villainess. The Spy Kids must save the star!

When their parents go on a spy mission to Brazil, Carmen and Juni are assigned two babysitters from the OSS. But when one sprouts tentacles and the other whiskers, they realize that these are spies on the prowl--and Carmen and Juni are on their own to solve the case.

Twelve-year-old Ben Ripley leaves his public middle school to attend the CIA's highly secretive Espionage Academy, which everyone is told is an elite science school.

Carmen and Juni are spending the summer at an OSS sleep-away camp. The camp director is a retired spy-turned-environmentalist named Oscar Zohn. But it turns out that O. Zohn thinks environmentalism means using nature for his own devices. He plans on using the unknowing help of the Spy Kid campers. Only Carmen and Juni are in the know…which means only they can save the world!

Holes meets The Goonies in the highly anticipated second middle-grade novel from the author of Gertie's Leap to Greatness!

Thirty years after their disappearance, the previously frozen Willoughbys have thawed out and returned from the Alps, to the consternation of their children and grandchildren.