extraterrestrial beings

For his eleventh birthday Ben receives an offer of a ride to the planet Cham with an alien named Iku, and when the appointed meeting time arrives he is not sure if he faces an exciting opportunity or horrible danger.

In the middle of the night, Brian transforms himself into Captain Pajamas, Defender of the Universe, to save his older sister Jessie from attacking aliens, but they are nowhere to be found.

A boy is visited by beings that look like robots that arrive in a flying saucer from outer space.

Two days after Marvin sees a glowing green thing like a flying birthday cake in the night sky, his third-grade class is joined by a mysterious new boy with peculiar behavior.

An exploding spaceship strands a boy on the planet Ziffoid, where he encounters an energetic and playful group of aliens.

While relaxing in the farmer's hot tub, two cow friends manage to stop an alien invasion without even knowing it.

When aliens come to Earth on an interplanetary trade mission, sixth-grader Tim makes friends with the ambassador's son and together they uncover a plot to sabotage the mission.

The reader's decisions determine what happens when a boy who is spending the summer in Canada's Yukon Territory meets an alien that has come to Earth aboard a Soviet shuttle.

Peter Thompson chooses to return to space with the alien Broxholm who has been masquerading as a teacher in order to study humans, but he is alarmed to discover the rulers of the galaxy are debating how to solve the problem of violent, destructive, underachieving Earthlings.

"Cinder and Captain Thorne are fugitives on the run, now with Scarlet and Wolf in tow. Together, they are plotting to overthrow Queen Levana and prevent her army from invading Earth. Their best hope lies with Cress, a girl trapped on a satellite since childhood who has only ever had her netscreens as company. All that screen time has made Cress an excellent hacker. Unfortunately, she is being forced to work for Queen Levana, and she has just received orders to track down Cinder and her handsome accomplice"--Provided by publisher.