Encyclopedia Brown and the Case of the Marshmallow Tower
by Eric Sobol, Donald J. Sobol
Penguin Group 2025
Great fit for 4th grade
Reading level and content both target 4th–8th grade · ages 9–14
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Genre
Themes
- problem-solving
- critical thinking
- friendship
- justice
- honesty
- community
- perseverance
- observation
About this book
Encyclopedia Brown and the Case of the Marshmallow Tower offers ten fresh, bite-size mysteries kids can try to solve before turning the page. Leroy “Encyclopedia” Brown and his partner Sally take on puzzling neighborhood cases with sharp observation and logic, all while keeping Idaville safe and fair. Short chapters, smart clues, and humor make this perfect for independent readers in grades 3–6. Fans love the interactive challenge and the satisfying aha! moments that come with each solution.
Setting: Idaville, present-day small town (homes, school, parks, and the Browns’ garage detective stand)
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Frequently Asked Questions
Is Encyclopedia Brown and the Case of the Marshmallow Tower right for my child?
Yes — Encyclopedia Brown and the Case of the Marshmallow Tower is a great fit for 4th grade. The reading level is AR 4.5, which is typical for 4th grade. The interest level is rated Middle Grades (4–8), meaning the themes and content are designed for ages 9–14 (4th–8th grade). Themes include problem-solving, critical thinking, friendship.
How long does it take to read Encyclopedia Brown and the Case of the Marshmallow Tower?
At a typical 4th grade reading pace, Encyclopedia Brown and the Case of the Marshmallow Tower takes around 2.2h to finish. The book has 20,000 words. Slower or faster readers may vary significantly.
Does Encyclopedia Brown and the Case of the Marshmallow Tower have an AR quiz?
Yes — Encyclopedia Brown and the Case of the Marshmallow Tower has an AR quiz available, worth 2 points. Your child will need to take and pass the quiz through their school's Accelerated Reader program to earn credit. The quiz is typically 5–20 multiple choice questions about plot, characters, and setting.
What grade level is Encyclopedia Brown and the Case of the Marshmallow Tower?
Encyclopedia Brown and the Case of the Marshmallow Tower has an AR reading level of 4.5, which places it at a 4th grade reading difficulty. The interest level is rated Middle Grades (4–8) — this reflects the age-appropriateness of the content and themes, not just the reading difficulty. A strong younger reader may handle the words fine while the themes are aimed at an older audience, or vice versa.