Beware of the Purple Peanut Butter

Beware of the Purple Peanut Butter was the sixth book in the Give Yourself Goosebumps gamebook series. It was written by R.L. Stine and illustrated by Mark Nagata. It was preceeded by Night in Werewolf Woods and followed by Under the Magician's Spell.

The prismatic hologram cover design consists of light blue swirls and the cover illustration consists of a person trapped inside a peanut butter and jelly sandwich. There is no peanut butter, but there is only the jelly, which smells like peanut butter in the book. The tagline was TALK ABOUT SNACK ATTACK!

Plot
You have flown to Fiskeville to spend the summer with your Aunt and Uncle, and their two children, your cousins Drippy Dora and Barney the Bully. Barney tells you to play hide and seek, whoever is found, Barney gets to pound. You hide in the basement, something your Aunt tells you not to do, because the people who lived there before them were strange and they never got around to cleaning it out. You get hungry and spot an old refrigerator. There are only two things inside, a jar of purple goop, possibly jelly, and some stale chocolate cake. If you eat the purple goop which smells like peanut butter, you wind up shrinking, and face the possibility of becoming one of Dora's dolls, being locked in the refrigerator, being flushed down the toilet, and fighting a now giant mouse. If you choose the cake, you wind up growing into a giant, and facing the possibilities of being chased by the local police who think you are a giant, being pounded by Barney, or intimidating Barney and Dora.