Lost Hero
by Rick Riordan
2010
Great fit for 4th grade
Reading level and content both target 4th–8th grade · ages 9–14
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Genre
Themes
- friendship
- identity
- teamwork
- loyalty
- courage
- destiny and prophecy
- family
- memory and loss
About this book
Three new demigods—Jason, Piper, and Leo—arrive at Camp Half-Blood with a dangerous quest and a mystery: Jason has no memory of who he is. As they race across the U.S., they uncover a looming threat that ties Greek and Roman gods together in surprising ways. Fast-paced action, humor, and rotating points of view keep readers turning pages. Perfect for fans of Percy Jackson who want a bigger world, deeper mythology, and a fresh team of heroes.
Setting: present-day United States, including Camp Half-Blood and a cross-country quest
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Frequently Asked Questions
Is Lost Hero right for my child?
Yes — Lost Hero 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 friendship, identity, teamwork.
How long does it take to read Lost Hero?
At a typical 4th grade reading pace, Lost Hero takes around 14h to finish. The book has 129,188 words. Slower or faster readers may vary significantly.
Does Lost Hero have an AR quiz?
Yes — Lost Hero has an AR quiz available, worth 19 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 Lost Hero?
Lost Hero 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.