Monster Blood III

Monster Blood III is the twenty-ninth book in the original Goosebumps series written by R.L. Stine.

Plot
Evan's annoying little cousin, Kermit Majors, is getting on his nerves, always conducting strange experiments that usually get Evan in trouble. Evan decides to 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, as they are splashed with some of the monster blood. After several 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 shrinks, but shrinks too much and finds himself only a few inches tall.

Trivia

 * 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 isn't actually seen.