Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Fire and Water | 2014 | Andrew Grey | N/A |
| 2 | To Protect | 2026 | Andrew Grey | Buy |
| 3 | Fire and Ice | 2015 | Andrew Grey | N/A |
| 4 | Fire and Rain | 2016 | Andrew Grey | N/A |
| 5 | Fire and Snow | 2016 | Andrew Grey | N/A |
| 6 | Fire and Hail | 2017 | Andrew Grey | N/A |
| 7 | Fire and Fog | 2017 | Andrew Grey | N/A |
The Carlisle K-9 series collects the Carlisle books that feature K-9 units and their handlers. Most of the entries overlap with the Carlisle Cops series, since those books include police officers who work with trained dogs as part of their duties. The addition of To Protect in 2026 gives the K-9 series its first standalone entry.
The appeal of these books goes beyond the romance. Andrew Grey clearly enjoys writing about the bond between officers and their working dogs, and the K-9 partners often play a meaningful role in the plot. For readers who love stories where animals are more than window dressing, the Carlisle K-9 series highlights that element of the broader Carlisle world.