Invasion of the Body Squeezers: Part 1

Invasion of the Body Squeezers is a two part book series in the Goosebumps Series 2000 book series.

It is proceeded by Creature Teacher and followed by I Am Your Evil Twin.

Plot

These two books concern a UFO fanatic, Jack, who winds up being forced to take action when a group of aliens who posess people by squeezing them threaten to take over the Earth.