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Cronin's Key Books in Order
Below you'll find the complete list of Cronin's Key books in publication order. This is generally the recommended reading order for the series.
Reading order verified: March 2026
Quick Answer
What order should I read the Cronin's Key series? Start with "Cronin's Key" (2015) and follow publication order through all 4 books.
The complete Cronin's Key reading order is listed below in publication sequence.
Publication Order
Cronin's Key
2015
Cronin's Key II
2015
Cronin's Key III
2015
Kennard's Story
2019
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