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Madison Mancini is a third grader at Jerome Horwitz Elementary School. She first appears in Captain Underpants and the Attack of the Talking Toilets.

History[]

Captain Underpants and the Attack of the Talking Toilets[]

Madison is the first to demonstrate her project, an automatic dog-washer, for the Invention Convention. However, when she presses a button to start the machine, it sprays ink all over the crowd. Everyone is soaked, with the sole exception of the dog the invention was meant to wash.

Trivia[]

  • She is based on Dav Pilkey's niece, as revealed in the Fun Fact section featured in the full-color edition of Book 2.
  • Since they share the same last name, Madison is likely related to Aaron Mancini.
  • Super Diaper Baby 2: Invasion of the Potty Snatchers is dedicated to her as seen in the first page
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