"For years Gregory Roarke and his Kadolian partner Selene worked as crocketts, combing through the atmospheres of uninhabited worlds for places that might be colonized or hold valuable resources. Now, they quietly work for the Icarus Group, a top-secret government organization hunting for portals created by a long-vanished alien race, portals that can teleport a person hundreds or thousands of light-years in the blink of an eye. Roarke and Selene...

"The Marshmallow Martians spend a night at a museum searching for a unique object to take back to Planet Moop"--

"Lucky thinks he's an ordinary Human boy. But one night, he dreams that the stars are singing - and wakes to find an uncontrollable power rising inside him. Now he's on the run, racing through space, searching for answers. In a galaxy at war, where Humans and Aliens are deadly enemies, the only people who can help him are an Alien starship crew - and an Alien warrior girl, with neon needles in her hair. Together, they must find a way to save the galaxy....

Mario is playing computer games, as usual, when three aliens arrive looking for fun new toys to play with, rather than boring electronic devices.

Olivia Carpenter hates her life. The kids at school bully her... even her dad treats her like a disease. When Olivia runs away, she doesn't expect to be beamed up by telepathic aliens and transported halfway across the galaxy, where she discovers a universe teeming with intelligent life - including twelve alien tribes who have engineered human DNA to suit their needs. But not everyone wants Project Human to succeed...Caught in the crosshairs of a...

Hunted by aliens while on vacation, thirteen-year-olds Kaci and Abby form an unlikely friendship.

Long after the Visitors split the moon and stopped Earth from turning, Megan and two friends mount their horses and set out across the Zone, where laws of nature do not apply, hoping to solve the mystery of her missing father and of the paralyzed planet itself.

Kurby, Risk, and Carma bring their spaceship, Judy, back to full operability, then help her complete her mission to find the "jewel of the galaxy."

"Teenage cowboy, Travis McClure, is desperate for adventure. He's bored with life on the remote planet of Aletha Three, herding cattle all day. But everything changes when he comes face-to-face with a creature that should only exist in nightmares. Then it's kill or be killed and Travis is forced to defend himself and the other terraformers. Armed only with his dad's rifle, he heads into the wilderness to track down the mystery predator before it destroys...

Take a journey inside the body-as an alien! Hop aboard a flying saucer and travel alongside your alien guides who are on a mission to understand the wonders of human body systems. High-impact graphic art explores the circulatory system, the digestive system, the skeletal system, and more. Lively text introduces concepts such as what the body is made of and how it responds to stimuli such as broken bones, burns, and illnesses. From major organs to...