Pitching a tent on the roof of her home during a summer when she gets fed up with her dysfunctional relatives, Joyce bonds with a boy who is grieving the loss of his brother before concocting a plan to build and sell tickets to a UFO display.

"Bruce tends to tell tall tales. But when he sees an alien crash-land in his neighborhood, he needs his best friends--Mei,Nia,and Pablo--to believe him. The four friends bring the alien back to their tree house to investigate, but can they care for a creepy critter with a taste for mischief?"--Back cover.

"A boring summer vacation turns unexpectedly interesting when mysterious lights appear over Roberta's hometown in northern Maine. Roberta is convinced she and her best friend Marillee can win the Maine State Science Fair if only they can find an amazing project to showcase. Communicating with aliens would certainly do the trick"--

When Darren Stonkadopolis claims he's had a close encounter of the stinky kind, the other Fart Squad members think he's full of hot air. But then the alien Stink Weeds descend, and the Fart Squad is forced to smell the truth. It'll take some weed wacking, some stealthy stench tactics, and buttfuls of gas so smelly they'd make the sun blush to stop these mutant extraterrestrial vegetables from universal stinkination.

"Heather wants more than anything to go to outer space, where the stars sparkle with magic and wonder. So when a UFO lands in the woods behind her house and she meets a friendly alien, it seems that all of her dreams have come true. But soon her new friend has to return to their home among the stars. Will the spaceship ever come back for her? And if it does, will Heather be ready to leave everything on Earth behind?"--

When Adam and his friends stay up late one night, they see bright lights in the sky lights that look an awful lot like flying saucers! Then the next night, one of the saucers lands by the reservoir. The creatures that come out of the ship don't look like people at all. Their heads are too large and their eyes are too big and black. Worse, the want Adam and his friends to come with them for a little ride in space. In fact, the aliens insist that they...

The reader's decisions control the course of an adventure involving a glowing mountaintop dome that may be from outer space.

"For years, you've had unique telepathic conversations with an alien named Freedo, who you like and trust. When you're tapped by several high-powered organizations to work with them on top-secret UFO research projects, you know it won't be long until your secret is revealed. ... You've always been fascinated by the possibility of UFOs and space travel. Freedo has told you some things, but hardly enough to prepare you for the dangerous humans--and...

The Dangerous Snake and Reptile club, with the help of a boy visiting the neighborhood, sets up equipment in the clubhouse in hopes of tracking flying saucers and making contact with aliens.

LC witnesses the landing of a spaceship, meets an alien, and helps the alien repair his spaceship so that he may return home.