Duncan Dougall discovers that his teacher, Miss Karpou, is an alien, but not before she chooses him to participate in an experiment in which he dons a helmet that fries his brains, but makes him smarter.

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.

Alien Invasion of Earth!Peter Thompson, a typical seventh-grader, finds himself touring the planet with his friends Susan Simmons and Duncan Dougal, and three aliens in disguise!Their mission? To file the final report that will determine Earth's future in the universe.As the clock ticks away the hours before their meeting in space, the tour becomes weirder and weirder. The three friends come face-to-face with a plague of poots and "Big Julie" -- the...

Anthony and his younger sister discover that the monster figures he got in an unusual box at an estate sale are alive, but they have no way of knowing that the "monsters" will lead them on fantastical adventures to other worlds in an effort to try to save Earth.

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.

Collects three stories about children whose teachers turn out to be extraterrestrials.