About this series
The DCI Ryan Mysteries is a series by LJ Ross. We list 24 books in this series so far, in reading order.
Start with Book 1: Holy Island: A DCI Ryan Mystery.
Tagged on most books in this series: Police detective, Male Protagonist, British and City.
If you like The DCI Ryan Mysteries, try Inspector David Graham Mysteries by Alison Golden, A Dover Mystery by Joyce Porter and Peter Diamond by Peter Lovesey.
What readers say
Readers come to this Northumberland-set police series for the close-knit team and their banter, the atmospheric historic locations, and gripping, twist-filled plots. Fans stay loyal and say it works best read in order. Recent reviews are more measured: later books are often called predictable, shorter or rushed, with cheesy romantic and personal scenes, a soap-opera feel, and cases that continue from one book to the next. Some readers also find the idealized leads and clumsy topical asides distracting.
Best for: Readers who want a character-led British crime series with warm banter and don't mind some formula and soap-opera drama.
Summary of public reader reviews, updated November 2026.
📖 Reading Order
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