In 2041 on Moon Base Alpha, thirteen-year-old Dash must solve the mystery of how Lars was poisoned before the base loses oxygen, forcing the colonists to return to Earth.--Provided by publisher.

In 2041 twelve-year-old Dashiell Gibson is a resident of Moon Base Alpha, and at the moment he is faced with a number of problems: coping with the nasty Sjoberg twins, finding out how the commander of the base has managed to disappear from a facility no bigger than a soccer field, and dealing with the alien Zan who communicates with him telepathically from afar--and who is hiding a secret which may threaten the whole Earth.

Geronimo Stiltonix and his spacemice crewmates travel to a planet where delicious mozzarella grows in order to restore harmony between its alien inhabitants and the cheese-loving slurp monster.

"A.J. and the gang at Ella Mentry School are in for a super surprise when a new teacher, Mr. Cooper, take over their third grade class"--

"Gratuity Tucci and her alien friend, J.Lo, journey to New Boovworld, one of Saturn's moons, to clear J.Lo's name after a string of misunderstandings"--

Middle school student Maya Andersen and her family move to Oregon, where the residents of the apartment building next to them have magical powers and the basement is a portal to other worlds, which Maya and her secret alien companion, Rimi, must use to track down aliens who snatched Rimi from her home planet in an attempt to rule the universe.

"When Earth is threatened by an invading race of bugs called the Hunger, 11-year-old Finn, his arch-nemesis, Lincoln, his crush, Julep, and one pink unicorn lunchbox become Earth's last best hope against destruction"--

Geronimo discovers a planet on the radar that mysteriously appears and disappears. MouseStar 1 lands to investigate and they discover mysterious aliens who hide a secret!

Andy and Terry live in a 130-story treehouse. It used to be a 117-story treehouse, but they added another 13 stories. It has a soap bubble blaster, a time-wasting level, a 13-story igloo, the GRABINATOR (it can grab anything from anywhere at any time). It is a toilet paper factory, and an extraterrestrial observation center for observing aliens. As it turns out, though, it's Andy, Terry, and Jill who are being observed and then abducted by a giant...

While no cat can be called ordinary, Leonard is definitely no ordinary cat. In fact, he is an alien, sent on an earthly sabbatical and mistakenly given the body of a rather scruffy stray. Rescued by animal lover Olive, Leonard does his best to study the humans he hoped to join while contending with the indignities of hair balls, kitty litter, and a compulsion to shred the curtains. And as he collects experiences - shared cheese sandwiches, jokes,...