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Lock and Key Books in Order
Below you'll find the complete list of Lock and Key books in publication order. This is generally the recommended reading order for the series.
Reading order verified: April 2026
Quick Answer
What order should I read the Lock and Key series? Start with "The Gadwall Incident" (2016) and follow publication order through all 4 books.
The complete Lock and Key reading order is listed below in publication sequence.
Publication Order
The Gadwall Incident
2016
The Initiation
2016
The Downward Spiral
2017
The Final Step
2018
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