Twelve-year-old Ethan must take command of a fractious flying squadron charged with finding a new Resister base, while being pursued by alien invaders.
When a pair of UFO-watchers disguised as aliens tries to get inside the Intergalactic Bed & Breakfast to broadcast their findings, it is up to David and Amy to keep the imposters at bay.
Daniel X, determined to free the world from intergalactic criminals, faces his most difficult challenge yet when number three on his list of outlaws takes the form of fire--reviving Daniel's memories of the death of his parents.
Thirteen-year-old Giles, a New York City boy who feels invisible next to his talented younger sister and smart older brother, comes to the rescue when space aliens from an intergalactic realty company arrive and try to evict humans for polluting the world.
Twelve-year-old Kyle Camden is annoyed because his superpower identity, the Azure Avenger (often called the Blue Freak) has been labeled as a villain by the town of Bouring--but when he builds a time machine, so that he can go back and prove that the hero Mighty Mike is an alien, he finds out that all of his assumptions are wrong.
Spending another adventure-filled summer in the Pacific Northwest at his grandmother's hotel for visiting space aliens, eighth-grader David uncovers a plot to destroy the Earth.
Twelve-year-old Kyle teams up with Mad Mask who, claiming super brain-power and superior superpowers, wants help building Ultitron, a robot that would rid Bouring of archvillain Mighty Mike and, perhaps, Mad Mask, as well.
When twelve-year-olds Madison and Felix kidnap him, Ethan learns that the Earth has been taken over by aliens and that all the adults in the world are under mind control.
Although Meggie Blue seems to be an average sixth-grader she is abnormally frightened when residents of her small, North Carolina town become fixated on aliens, and soon she and her family are forced to flee, making it clear that all is not as it seems.
Twelve-year-old Kyle Camden develops greater mental agility and superpowers during a plasma storm that also brings Mighty Mike, an alien, to the town of Bouring, but while each does what he thinks is best, Kyle is labeled a villain and Mike a hero.
