Forbidden Mountain
by Brandon Mull
Random House 2026
Great fit for 5th grade
Reading level and content both target 4th–8th grade · ages 9–14
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Genre
Themes
- destiny and choice
- identity
- friendship
- courage
- power and responsibility
- good vs. evil
- mentorship
- loyalty
About this book
In a sweeping new fantasy world, every child awaits a life-changing bond with a guardian spirit—one that can amplify talents or unleash dangerous power. When the matching ritual arrives, choices and consequences collide, sending young heroes toward trials that test loyalty, courage, and who they’re meant to become. Brandon Mull blends fast-paced adventure with rich worldbuilding and high-stakes magic. Perfect for middle grade fantasy fans who love big quests, surprising creatures, and the thrill of discovering their destiny.
Setting: the world of Anora, a sprawling high-fantasy realm of villages, sacred bonding huts, and perilous mountains
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Frequently Asked Questions
Is Forbidden Mountain right for my child?
Yes — Forbidden Mountain is a great fit for 5th grade. The reading level is AR 5.5, which is typical for 5th 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 destiny and choice, identity, friendship.
How long does it take to read Forbidden Mountain?
At a typical 5th grade reading pace, Forbidden Mountain takes around 15h to finish. The book has 150,000 words. Slower or faster readers may vary significantly.
Does Forbidden Mountain have an AR quiz?
Yes — Forbidden Mountain has an AR quiz available, worth 22 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 Forbidden Mountain?
Forbidden Mountain has an AR reading level of 5.5, which places it at a 5th 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.