Arthur's Heart Mix-Up
Author Marc Brown
Illustrator Marc Brown
Publication date January 1, 2004
Publication Order
Preceded by
Arthur's Birthday Surprise
Followed by
Arthur's Homework
Arthur's Heart Mix-Up is a book written by Marc Brown first published January 1, 2004.


Arthur finishes his science fair project just in time for the fair, but an over-excited Pal scatters Arthur's carefully laid out human heart. Arthur is so desperate to fix his broken heart, it's all he can talk about to his friends. Binky, the Brain, Francine, Muffy, and Buster are baffled as to who mystery girl is who has broken Arthur's heart, and head to Arthur's house to cheer him up. Will Arthur's heart be mended—and in time for the science fair?[1]


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