The Underland Chronicles Books in Order
The Underland Chronicles is a 5-book series by Suzanne Collins for ages 9+, at a grades 4–8 reading level, with moderate to intense content (HootRated intensity 3–4 out of 5).
- Books
- 5
- In series order
- Content intensity
- Moderate to intense
- HootRated 3–4 out of 5 · avg 3.2
The Underland Chronicles Reading Order
All 5 The Underland Chronicles books, numbered in series order.
| # | Title | Reading Level | Ages | Content |
|---|---|---|---|---|
| 1 | Gregor the Overlander | Level 4-5 | 9-12 | Moderate |
| 2 | Gregor and the Prophecy of Bane | Level 4-5 | 9-12 | Moderate |
| 3 | Gregor and the Curse of the Warmbloods | Level 4-5 | 9-12 | Moderate |
| 4 | Gregor and the Marks of Secret | Level 4-5 | 9-12 | Moderate |
| 5 | Gregor and the Code of Claw | Level 8 | 13+ | Intense |
Content Intensity Across the Series
ConsistentContent stays at a steady intensity level throughout the series.
Series books grow with readers — but that's also the trap. Most series start at one reading level and one content intensity and drift upward over the course of the run. The Underland Chronicles (5 books by Suzanne Collins) lands at a grades 4–8 reading level, with average content intensity 3.2/5. Intensity stays consistent across the series, so a reader who can handle the first book can generally handle the rest.
The reading-order table above lists every book with per-volume reading level, age and intensity ratings so you can spot any escalation before it catches your reader off guard. For a deeper dive into how we score text difficulty vs. emotional weight separately — and why series readers especially benefit from that split — see our methodology page.
All The Underland Chronicles Books
Gregor the Overlander
Suzanne Collins
Gregor the Overlander
Suzanne Collins
Gregor and the Prophecy of Bane
Suzanne Collins
Gregor and the Prophecy of Bane
Suzanne Collins
Gregor and the Curse of the Warmbloods
Suzanne Collins
Gregor and the Curse of the Warmbloods
Suzanne Collins
Gregor and the Marks of Secret
Suzanne Collins
Gregor and the Marks of Secret
Suzanne Collins
Gregor and the Code of Claw
Suzanne Collins
Gregor and the Code of Claw
Suzanne Collins
Series Like The Underland Chronicles: What to Read Next
Similar reading level, content intensity and themes.
- Warriors: The Power of Three by Erin Hunter 6 books · Grades 4–5 · mild to intense content
- Warriors Novella by Erin Hunter 5 books · Grades 5–6 · mild to moderate content
- Chronicles of Narnia by C. S. Lewis 7 books · Grades 5–6 · mild to moderate content
- Percy Jackson & the Olympians by Rick Riordan 5 books · Grades 4–5 · moderate to very intense content
- Heroes of Olympus by Rick Riordan 5 books · Grades 4–5 · moderate to intense content
- Eighth Day by Dianne K. Salerni 3 books · Grades 5–6 · mild to moderate content
Questions about The Underland Chronicles series
- What reading level is The Underland Chronicles series?
- The Underland Chronicles books are at a grades 4–8 reading level (average grade level 5.4), and HootRated recommends the series for ages 9+. There are 5 books in the series.
- What order should I read The Underland Chronicles books?
- Read The Underland Chronicles books in series order: Book 1: Gregor the Overlander; Book 2: Gregor and the Prophecy of Bane; Book 3: Gregor and the Curse of the Warmbloods; Book 4: Gregor and the Marks of Secret; Book 5: Gregor and the Code of Claw.
- What age is The Underland Chronicles series appropriate for?
- HootRated recommends The Underland Chronicles for ages 9+. Content is moderate to intense (HootRated intensity 3–4 out of 5). Intensity stays consistent across the series, so a reader who can handle the first book can generally handle the rest.