Fourth-grader Zack McGee's life is turned upside-down when Amp, a tiny alien, crash-lands in his bedroom, then causes trouble at school while trying to get parts to repair his spaceship.

Possum and Alien become friends and find that they have both similarities and differences.

Zack and Amp go on a camping trip.

As aliens invade Jaden Toussaint's school, he must use his brain power to save everyone.

"Zack McGee has gotten in tons of trouble thanks to Amp, the four-inch-tall alien that crash-landed into his bedroom, but when Amp's commander, Ohm, comes to collect the stranded alien, it's Amp's turn in the hot seat!"--

Yelfred and Omek of planet Boborp are best frints, even when they have disagreements.

While his scientist-parents study Earth, second-grader Zeke tries to fit in but Harris, a classmate, notices his abilities and sets out to prove Zeke is an alien.

"Zack McGee and his alien friend, Amp, discover that the alien invasion is underway"--

Second-grade detectives Jigsaw, Mila, and their friends follow clues found in a Little Free Library suggesting that aliens are coming to Earth.

Zack and Amp battle alien invaders-from Amp's own planet-in the eighth and final installment of this exciting chapter book series. Complete with an original do-it-yourself science experiment! Zack McGee has grown fond of his troublesome alien buddy, Amp, since he crash-landed his ship through Zack's bedroom window. They've gotten into more than their fair share of trouble together, but they've always found a way out of it. Until a fleet of ships from...