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Cooper Kids Adventure Books in Order

Cooper Kids Adventure is a 7-book series by Frank E. Peretti for ages 9–12, at a grades 5–6 reading level, with mild to moderate content (HootRated intensity 2–3 out of 5).

Books
7
By publication date
Reading level
Grades 5–6
Average grade level 5.6
Recommended ages
Ages 9–12
From HootRated age ratings
Content intensity
Mild to moderate
HootRated 2–3 out of 5 · avg 2.3

Cooper Kids Adventure Reading Order

Series numbers aren't available for most Cooper Kids Adventure books, so they're listed by publication date (oldest first).

# Title Reading Level Ages Content
1 The door in the dragon's throat
1985
Level 5-6 9-12 Mild
2 Escape from the Island of Aquarius
1986
Level 5-6 9-12 Mild
3 Tombs of Anak
1987
Level 5-6 9-12 Mild
4 Trapped at the bottom of the sea
1990
Level 5-6 9-12 Moderate
5 The secret of the Desert Stone
1996
Level 5-6 9-12 Mild
6 Flying Blind
1997
Level 5-6 9-12 Mild
7 The deadly curse of Toco-Rey
1999
Level 5-6 9-12 Moderate

Content Intensity Across the Series

Consistent

Content stays at a steady intensity level throughout the series.

1
2
3
4
5
6
7
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. Cooper Kids Adventure (7 books by Frank E. Peretti) lands at a grades 5–6 reading level, with average content intensity 2.3/5. 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 Cooper Kids Adventure series

What reading level is the Cooper Kids Adventure series?
Cooper Kids Adventure books are at a grades 5–6 reading level (average grade level 5.6), and HootRated recommends the series for ages 9–12. There are 7 books in the series.
What order should I read the Cooper Kids Adventure books?
Series numbers aren't available for most Cooper Kids Adventure books, so HootRated lists them by publication date: The door in the dragon's throat (1985); Escape from the Island of Aquarius (1986); Tombs of Anak (1987); Trapped at the bottom of the sea (1990); The secret of the Desert Stone (1996); and 2 more.
What age is the Cooper Kids Adventure series appropriate for?
HootRated recommends Cooper Kids Adventure 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.