Three boys set out on a secret mission to penetrate the City of the Tripods and learn more about these strange beings that rule the earth.

For a century now, Earth has been a peaceful colony of an alien race, and Donovan Reyes is a loyal member of the security forces, while his father is the Prime Liaison--but when a routine search and seizure goes bad Donovan finds himself a captive of thehuman revolutionary group, Sapience, terrorists who seem to prefer war to alien rule, and killing Donovan just might be the incident they are looking for.

"Mr. Wuffles ignores all his cat toys but one, which turns out to be a spaceship piloted by small green aliens. When Mr. Wuffles plays rough with the little ship, the aliens must venture into the cat's territory to make emergency repairs"--

Publisher Annotation: Aliens, sassy hedgehogs, and unexplained disappearances . . . Oh, my! Discover the secrets of the universe in this hilarious, highly illustrated middle-grade series from New York Times bestselling author Julie Buxbaum.

In a future where alien beings consume technology as a few humans try to preserve it, Strata, her brother, and a friend are separated from their caravan and, with a wonderful robotic horse, must fight their way back.

An ensemble cast of characters in one classroom experience the first week of school, including one unexpected visitor.

The wildly popular books by K.A. Applegate are back! The Animorphs return in this update of the classic series. Rachel isn't the kind of girl who backs away from a fight. When her dad asks her to move across the country with him, it hurts, but Rachel won't desert her friends in their fight to save the world.But then the Animorphs are contacted by a very old, very powerful alien being that knows about their struggle. He's called the Ellimist, and...

Jake Foster, a shapeshifting alien of goo disguised as a human, and his spunky friend Agnes investigate the mysterious takeover of their neighbors by "imblobsters" and uncover the reason Jake is losing control of his ability to keep his human shape.

Paige Miller fears she is the only person left alive in Ohio until she meets a handful of other survivors, and together they struggle with the knowledge that their new reality is the first part of an alien invasion.

The Garde, broken and divided, discover that the Mogadorians have commenced their ultimate invasion plans and will stop at nothing to thwart it.