Middle School and Other Disasters Biggest Secret Ever!

81L96N1n1zL
Author(s)
Co-Authors / Illustrators
Age Range
8+
Release Date
March 05, 2025
ISBN
978-1665948340
Buy This Book
     
In this hilarious follow-up to the New York Times bestseller Worst Broommate Ever, witch-in-training Heidi Heckelbeck struggles to keep a secret. Featuring black-and-white illustrations and doodles throughout and sparkly foil on the cover!

Heidi is making new friends at Broomsfield Academy—in particular, a popular girl named Isabelle. But it turns out Isabelle has a big secret that Heidi discovers by accident! Heidi promises to keep the secret, but as more time goes by, it becomes more and more difficult…especially with nosy Melanie Maplethorpe snooping around. This secret is huge. Will Heidi be able to keep her promise?

Editor review

1 review
Magic and Friendship
(Updated: June 19, 2026)
Overall rating
 
3.8
Plot
 
4.0
Characters
 
4.0
Writing Style
 
3.0
Illustrations/Photos (if applicable)
 
4.0
Middle School and Other Disasters: Biggest Secret Ever is the latest installment in Wanda Coven's series that follows Heidi Heckleback and her friends while they attend Broomsfield Academy.

Heidi becomes friends with a new girl named Isabella and learns a huge secret about her past that she promises to keep. Things get complicated when Heidi's roommate stumbles upon the secret, forcing Heidi to resort to her (sometimes unreliable) magic. Ultimately, Heidi learns some lessons about magic and friendship that make for a very entertaining read.

What I Liked: Heidi is a very relatable character. Her emotional rollercoaster is authentic and entertaining, making her a character readers will instantly connect with. Like any good story there is some conflict and drama, but what sets this story apart is the little bits of magic sprinkled in. I love the use of illustrations and the bigger font sizes used. As a school librarian, I know how much this appeals to middle-grade readers, making the book accessible and engaging.

Biggest Secret Ever is a delightful middle-grade book filled with friendship and magic.
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