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Spy Society Books in Order

Spy Society is a 2-book series by Jane B. Mason for ages 5–8, at a grades 4–5 reading level, with gentle content (HootRated intensity 1/5).

Books
2
By publication date
Reading level
Grades 4–5
Average grade level 4.6
Recommended ages
Ages 5–8
From HootRated age ratings
Content intensity
Gentle
HootRated 1/5

Spy Society Reading Order

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

# Title Reading Level Ages Content
1 Disguised & dangerous
2011
Level 4-5 5-8 Gentle
2 Let sleeping dogs spy
2012
Level 4-5 5-8 Gentle

Content Intensity Across the Series

Consistent

Content stays at a steady intensity level throughout the series.

1
2
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. Spy Society (2 books by Jane B. Mason) lands at a grades 4–5 reading level, with average content intensity 1/5. 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 Spy Society Books

Disguised & dangerous

Jane B. Mason

Cover of Disguised & dangerous

Disguised & dangerous

Jane B. Mason

Level 4-5

Let sleeping dogs spy

Jane B. Mason

Cover of Let sleeping dogs spy

Let sleeping dogs spy

Jane B. Mason

Level 4-5 Gentle

Similar reading level, content intensity and themes.

Questions about the Spy Society series

What reading level is the Spy Society series?
Spy Society books are at a grades 4–5 reading level (average grade level 4.6), and HootRated recommends the series for ages 5–8. There are 2 books in the series.
What order should I read the Spy Society books?
Series numbers aren't available for most Spy Society books, so HootRated lists them by publication date: Disguised & dangerous (2011); Let sleeping dogs spy (2012).
What age is the Spy Society series appropriate for?
HootRated recommends Spy Society for ages 5–8. Content is gentle (HootRated intensity 1/5). Intensity stays consistent across the series, so a reader who can handle the first book can generally handle the rest.