
#137 in Children’s books
Infernal Devices
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Our view
“Infernal Devices” continues the “Mortal Engines” quartet with a solid third volume, a dark adventure of war and growing up. Some readers take to the young heroine who steps forward here and find the pace and quality equal to the previous book. Others feel that each volume moves further from Tom and Hester, the pair the series began with, and enjoy it a little less for that.
The view of the BookRank editors, written from readers’ ratings and comments. It does not affect the score or the book’s place in a ranking.
About the book
Infernal Devices is the third of four novels in Philip Reeve's children's series, the Mortal Engines Quartet.
Reading order · Mortal Engines Quartet
Full order & progress →- Mortal EnginesStart here
7.57.5 / 10 - Predator's Gold
7.87.8 / 10 - Infernal DevicesThis book
7.87.8 / 10 - A Darkling Plain
7.97.9 / 10
Where the score comes from
The sources average 7.7 across 109 ratings — not yet many, so the reader vote carries 43% of the weight and the rest pulls toward the Children’s books average of 7.9. That is how 7.8 comes out.
| Source | Average | Ratings | Weight |
|---|---|---|---|
| Hardcover | 7.7 | 109 | 100% |
Frequently asked
What age is Infernal Devices for?
Infernal Devices sits on the Children shelf in the sources we use, which by convention means roughly ages 5–10. This is a guide from the book’s category, not a publisher’s age rating.
In this book
Themes this book shares with others — each leads to the best books on it.
If you liked this
Same shelf — Children’s books — with scores between 7.4 and 7.8, closest to this book.





