Invasion of the Body Squeezers: Part 1 is a novella written by R. L. Stine. It was first published in 1998 and is the fourth book in the Goosebumps Series 2000 book series.
Description[]
A green and slimy alien puts the squeeze on everyone it touches in a first installment of a two-part story in the most chilling Goosebumps series to date.