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Secrets of an Overworld Survivor Books in Order

Secrets of an Overworld Survivor is a 5-book series by Greyson Mann for ages 5–12, at a grade 4 reading level, with mild to moderate content (HootRated intensity 2–3 out of 5).

Books
5
In series order
Reading level
Grade 4
Average grade level 4.2
Recommended ages
Ages 5–12
From HootRated age ratings
Content intensity
Mild to moderate
HootRated 2–3 out of 5 · avg 2.2

Secrets of an Overworld Survivor Reading Order

All 5 Secrets of an Overworld Survivor books, numbered in series order; books without a confirmed series number follow, by publication date.

# Title Reading Level Ages Content
2 When Lava Strikes
Secrets of an Overworld Survivor, #2
2017
Level 4-5 5-8 Moderate
3 Wolves vs. Zombies
Secrets of an Overworld Survivor, #3
2017
Level 4-5 5-8 Mild
4 Never Say Nether
Secrets of an Overworld Survivor, #4
2017
Level 4-5 5-8 Mild
5 Secrets of an Overworld Survivor
Secrets of an Overworld Survivor, #5
2017 · Grace Sandford
Level 4-5 5-8 Mild
Also in the series (no confirmed series number)
— Journey to the End
Secrets of an Overworld Survivor, Book Six
2018
Level 4-5 9-12 Mild

Content Intensity Across the Series

Consistent

Content stays at a steady intensity level throughout the series.

1
2
3
4
5
First book Latest book

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. Secrets of an Overworld Survivor (5 books by Greyson Mann) lands at a grade 4 reading level, with average content intensity 2.2/5. 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.

Similar reading level, content intensity and themes.

Questions about the Secrets of an Overworld Survivor series

What reading level is the Secrets of an Overworld Survivor series?
Secrets of an Overworld Survivor books are at a grade 4 reading level (average grade level 4.2), and HootRated recommends the series for ages 5–12. There are 5 books in the series.
What order should I read the Secrets of an Overworld Survivor books?
Read the Secrets of an Overworld Survivor books in series order: Book 2: When Lava Strikes; Book 3: Wolves vs. Zombies; Book 4: Never Say Nether; Book 5: Secrets of an Overworld Survivor: Secrets of an Overworld Survivor, #5; Journey to the End (2018). 1 more book has no confirmed series number and is listed after the numbered books by publication date.
What age is the Secrets of an Overworld Survivor series appropriate for?
HootRated recommends Secrets of an Overworld Survivor for ages 5–12. Content is mild to moderate (HootRated intensity 2–3 out of 5). Intensity stays consistent across the series, so a reader who can handle the first book can generally handle the rest.