Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Cold Grave | 2020 | Mary Stone | Buy |
| 2 | Cold Highway | 2020 | Mary Stone | Buy |
| 3 | Cold Hunt | 2020 | Mary Stone | Buy |
| 4 | Cold Revenge | 2020 | Mary Stone | Buy |
| 5 | Cold Shadows | 2020 | Mary Stone | Buy |
| 6 | Cold Start | 2020 | Mary Stone | N/A |
| 7 | Cold Threat | 2020 | Mary Stone | Buy |
| 8 | Cold Truth | 2020 | Mary Stone | Buy |
| 9 | Cold Death | 2021 | Mary Stone | Buy |
| 10 | Cold Trail | 2021 | Mary Stone | Buy |
| 11 | Cold Heart | 2022 | Mary Stone | Buy |
| 12 | Cold Judgment | 2022 | Mary Stone | Buy |
| 13 | Cold Intentions | 2023 | Mary Stone | Buy |
| 14 | Cold Crash | 2024 | Mary Stone | Buy |
FBI Agent Ellie Kline takes on the cases that others have set aside. Cold cases, stalled investigations, and murders where the obvious answers do not add up all find their way to her desk. Her persistence and eye for overlooked details make her effective where others have failed.
Mary Stone writes FBI thrillers featuring capable women who face both dangerous criminals and personal challenges. Ellie fits this mold while bringing her own distinctive approach to investigation. She trusts her instincts even when they lead her away from easy conclusions.
The series delivers fast-paced investigations with enough character depth to keep readers invested in Ellie beyond individual cases. Each book works as a standalone thriller while building on what came before.