|Muffy's Secret Admirer|
|Publication date||October 1, 1999|
|Published by||Little, Brown and Company|
| Preceded by|
Buster Makes the Grade
| Followed by|
Arthur and the Poetry Contest
Differences from the episode
The book begins after the science fair, and recounts Muffy's deeds as a flashback. In the episode, the science fair scenes were shown.
The Phantom of the Opera reference is replaced with Arthur telling Brain to be careful, or else his brilliant science career could be ruined before it even started.