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Monster Blood III

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Monster Blood III was the twenty-ninth book in the Goosebumps book series. It was preceded by The Cuckoo Clock of Doom and followed by It Came from Beneath the Sink!

The illustration on the cover shows Evan Ross's large legs on the playground with spilled Monster Blood nearby.


Evan's annoying little cousin, Kermit Majors, is getting on his nerves. Kermit is always conducting strange experiments, that usually get Evan in trouble. Andy decides to help Evan strike back by sticking a bit of Monster Blood in one of Kermit's mixtures. The mixture grows larger but then bursts, flying around the room. Evan accidentally swallows some and soon begins to grow bigger and bigger, almost ending up trapped in the basement. He narrowly escapes and stops growing, when he is several stories high. His clothes also grow with him, because they are splashed with some of the monster blood.

At first, he gets children's kites out of trees and they call Evan "Super Evan", but he crushes a car. After more unintentional accidents, the police and fire department hound the enormous Evan, believing he is an alien. Fortunately, Kermit quickly invents a compound which will make him shrink. Evan drinks the formula and (after a few unwanted results such as turning blue, getting hiccups and growing feathers), he shrinks, but shrinks too much and finds himself only a few inches tall. Using his dog Trigger, he makes his way to his father to tell him of his problem.

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It's the slime that never dies

Kermit loves playing nasty practical jokes on his friends. But his friends are going to teach him a lesson he'll never forget.

Monster Blood III Goosebumps #29 by R.L. Stine

Oozing into a bookstore near you!

Cover Art Gallery



Insert cover art here.


  • The front cover follows artist Tim Jacobus' long tradition of incorporating Converse sneakers into the cover artwork.
  • Monster Blood III is referenced by the main character in Beware of the Purple Peanut Butter, the sixth Give Yourself Goosebumps book.
  • The Blogger Beware review for this book is set out like a quiz, but the correct answer is always choice "C".
  • Kermit is referred to as an adult scientist in Beware of the Purple Peanut Butter, but is not actually seen.
  • This book was never made into a television episode for the Goosebumps television series.
  • As is standard with each first edition release of a Goosebumps book, the first edition back cover prefaces the next title of the then-unpublished book #30 as, "Coming soon from R.L. Stine: It Came from Under the Sink!" However, the actual published title is slightly altered to It Came from Beneath the Sink!
  • This is the third time a character has grown from eating Monster Blood. The first time being Evan's dog Trigger and the second time was Cuddles the Hamster.

UK Cover

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