Aliens

Ax is an Andalite, an alien, stranded on a strange planet he's sworn to defend, even though it's not his own. Since the Animorphs rescued him, he's fought at their side, and in that time they've come to consider Ax a friend. But deep inside, Ax knows he isn't their friend....

The Animorphs have managed to contact the Andalite home world, but the battle is far from over. Visser Two has arrived on Earth, and he's not happy about the state of things.

There's an alien in Jack Archer's bedroom and he's not sure what to do. He's tried to warn his parents, teachers, and friends about the invasion, but everyone has just laughed him off.

Jack Archer is convinced something strange is going on at his neighbor's house. Mr. Fleshman always wears all black, hardly ever leaves his house, and never says hello to anyone.

Have you heard of Area 51? Of course you have! What good is a secret government facility that's no longer secret? Which is why the government packed up their alien artifacts and paranormal paraphernalia and moved to a brand new--even more top secret--location...

When Sky Patel-Baum is sent to live with her mysterious uncle, she didn’t imagine she’d end up here: Area 51. A top-secret military base with a bajillion rules and so classified not even the president knows its secrets....

In this sixth and last installment of the Daniel X series, the alien-hunting hero is finally ready to take on the biggest threat in the galaxy: The Prayer....

Still searching for the Emperor’s Seat, Zelia, Talen and Mekki arrive on the jungle planet of Weald....

There’s something weird going on in South Bank…and the Young brothers are at the center of it.

Daniel X's hunt to eliminate each and every intergalactic criminal on Earth is always relentless, but this time, it's getting personal....

A killer space toilet is hurtling toward Area 51, courtesy of a mystery traitor on base, and things are about to get messy if Sky and her friends can’t solve the case....

A middle grade debut by New York Times bestselling co-author of Between the Lines stars 13-year-old Ava, who helps run her family’s refuge for extraterrestrials. But a sudden attack on the zoo leads to her discovering a government conspiracy that upends everything she believed to be true.

Sky and her friends tackle their biggest mystery yet—the discovery of Area 52....

David can’t wait to spend another summer at his grandmother’s Intergalactic Bed & Breakfast - a vacation hot spot for aliens....

Rieden Reece and the Virtual Girl is the action-packed fifth book in the Rieden Reece middle grade science fiction series. If you like whimsical humor, LitRPG worlds, and relatable characters, then you’ll love Matt Guzman’s madcap adventure.

From master storyteller Garth Nix, the chilling story of a strange object that falls into the wrong hands and has the potential to destroy the world.

Go back to the Space Race with No.1 bestselling author David Walliams for a breathless cinematic adventure full of mystery, action, laughs and surprises—and a secret that could change the course of history....

When a school assembly is interrupted by an ALIEN INVASION, bookworm Finley Swinnerton finds himself catapulted into an unlikely quest to save the planet, humanity and even Derek the school Guinea Pig!

Co-written by Newbery-honor winning author Rajani LaRocca and Chris Baron, this novel is told through letters, e-mails, instant messages, and video chats between camp friends Tripti and Sam over their shared love of a book series and some mysterious rocks they brought home from summer camp....

Meet Zeebo, a young and curious alien who accidentally crash-lands on Earth, far from his home among the stars. As he tries to find his way back, Zeebo discovers that Earth is full of surprises, strange customs, and wonderful new friends.

Pleskit Meenom, the first alien to go to school on Earth, is starting to fit in with his new class. It's not easy, given how slippery the language is. But the biggest problem is Jordan Lynch, the class bully who just can't resist picking on the new kid....

Can an anxious 11-year-old find her chill and save her family from creepy aliens? Only if she's the most awesome, super-brave astronaut since Spaceman Spiff! So take a deep breath, grab your sidekick, and blast off with Jillian to Parasite Planet....

The destinies of a 12-year-old boy and an alien man become inextricably linked as they go on the run from government agents and a shape-shifting enemy....

I thought I knew everything there was to know about my parents, like what they always eat for breakfast. Then one morning, everything changes....

Scrub isn’t happy about having to spend the summer with his hippie grandmother in “Middle of Nowhere,” Washington....