What reading level is The Last Kids on Earth series?

The Last Kids on Earth books are at a grade 5 reading level (average grade level 5), and HootRated recommends the series for ages 9–12. There are 5 books in the series.

What order should I read The Last Kids on Earth books?

Read The Last Kids on Earth books in series order: Book 1: The last kids on Earth; Book 2: The last kids on Earth and the zombie parade!; Book 4: The Last Kids on Earth and the Cosmic Beyond; Book 6: The Last Kids on Earth and the Forbidden Fortress; Book 7: The Last Kids on Earth and the Monster Dimension.

What age is The Last Kids on Earth series appropriate for?

HootRated recommends The Last Kids on Earth for ages 9–12. 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.

The Last Kids on Earth Books in Order

The Last Kids on Earth is a 5-book series by Max Brallier for ages 9–12, at a grade 5 reading level, with mild to moderate content (HootRated intensity 2–3 out of 5).

Books: 5; In series order
Reading level: Grade 5; Average grade level 5
Recommended ages: Ages 9–12; From HootRated age ratings
Content intensity: Mild to moderate; HootRated 2–3 out of 5 · avg 2.4

The Last Kids on Earth Reading Order

All 5 The Last Kids on Earth books, numbered in series order.

#	Title	Reading Level	Ages	Content
1	The last kids on Earth 2015	Level 5	9-12	Mild
2	The last kids on Earth and the zombie parade! 2016	Level 5	9-12	Moderate
4	The Last Kids on Earth and the Cosmic Beyond 2018	Level 5	9-12	Mild
6	The Last Kids on Earth and the Forbidden Fortress 2022	Level 5	9-12	Moderate
7	The Last Kids on Earth and the Monster Dimension 2023	Level 5	9-12	Mild

Content Intensity Across the Series

Consistent

Content stays at a steady intensity level throughout the series.

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. The Last Kids on Earth (5 books by Max Brallier) lands at a grade 5 reading level, with average content intensity 2.4/5. 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 Last Kids on Earth Books

The last kids on Earth

Max Brallier