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The Mysterious Benedict Society Books in Order

The Mysterious Benedict Society is a 4-book series by Trenton Lee Stewart for ages 9–12, at a grades 5–6 reading level, with mild to moderate content (HootRated intensity 2–3 out of 5).

Books
4
In series order
Reading level
Grades 5–6
Average grade level 5.5
Recommended ages
Ages 9–12
From HootRated age ratings
Content intensity
Mild to moderate
HootRated 2–3 out of 5 · avg 2.3

The Mysterious Benedict Society Reading Order

All 4 The Mysterious Benedict Society books, numbered in series order.

# Title Reading Level Ages Content
1 The Mysterious Benedict Society Level 5-6 9-12 Moderate
2 Mysterious Benedict Society and the Perilous Journey
2014
Level 5-6 9-12 Mild
3 The Mysterious Benedict Society and the Prisoner's Dilemma Level 5-6 9-12 Mild
4 The Mysterious Benedict Society and the Riddle of Ages Level 5-6 9-12 Mild

Content Intensity Across the Series

Consistent

Content stays at a steady intensity level throughout the series.

#1
#2
#3
#4
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 Mysterious Benedict Society (4 books by Trenton Lee Stewart) 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.

All The Mysterious Benedict Society Books

The Mysterious Benedict Society

Trenton Lee Stewart

Cover of The Mysterious Benedict Society

The Mysterious Benedict Society

Trenton Lee Stewart

Level 5-6

Mysterious Benedict Society and the Perilous Journey

Trenton Lee Stewart

Cover of Mysterious Benedict Society and the Perilous Journey

Mysterious Benedict Society and the Perilous Journey

Trenton Lee Stewart

Level 5-6

The Mysterious Benedict Society and the Prisoner's Dilemma

Trenton Lee Stewart

Cover of The Mysterious Benedict Society and the Prisoner's Dilemma

The Mysterious Benedict Society and the Prisoner's Dilemma

Trenton Lee Stewart

Level 5-6

The Mysterious Benedict Society and the Riddle of Ages

Trenton Lee Stewart

Cover of The Mysterious Benedict Society and the Riddle of Ages

The Mysterious Benedict Society and the Riddle of Ages

Trenton Lee Stewart

Level 5-6

Similar reading level, content intensity and themes.

Questions about The Mysterious Benedict Society series

What reading level is The Mysterious Benedict Society series?
The Mysterious Benedict Society books are at a grades 5–6 reading level (average grade level 5.5), and HootRated recommends the series for ages 9–12. There are 4 books in the series.
What order should I read The Mysterious Benedict Society books?
Read The Mysterious Benedict Society books in series order: Book 1: The Mysterious Benedict Society; Book 2: Mysterious Benedict Society and the Perilous Journey; Book 3: The Mysterious Benedict Society and the Prisoner's Dilemma; Book 4: The Mysterious Benedict Society and the Riddle of Ages.
What age is The Mysterious Benedict Society series appropriate for?
HootRated recommends The Mysterious Benedict Society 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.