Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Stone Cold Texas Ranger | 2016 | Nicole Helm | Buy |
| 2 | Stone Cold Undercover Agent | 2017 | Nicole Helm | Buy |
| 3 | Stone Cold Christmas Ranger | 2017 | Nicole Helm | Buy |
Stone Cold is a three-book romantic suspense series by Nicole Helm, set in Texas. Stone Cold Texas Ranger (2016) opens the series, followed by Stone Cold Undercover Agent and Stone Cold Christmas Ranger (both 2017). The series features Texas law enforcement officers in high-stakes situations.
The Texas setting moves Helm’s western romance into Lone Star territory, with Rangers and undercover agents replacing the Montana and Wyoming cowboys of her other series.