Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | The Messenger | 2021 | John Etterlee | Buy |
| 2 | Retribution | 2022 | John Etterlee | Buy |
| 3 | Blood Red | 2023 | John Etterlee | Buy |
| 4 | An imminent Threat | 2024 | John Etterlee | Buy |
The Rob Walker series follows a Special Forces operator across four books of escalating global conflict. The Messenger (2021) opens with Rob returning from Afghanistan to rescue his sister from a cartel. Retribution (2022) sends him to Africa, where half his team is killed and a government conspiracy surfaces.
Blood Red (2023) takes the series to Ukraine, where Rob fights alongside resistance forces in brutal guerrilla warfare. An Imminent Threat (2024) brings the danger home with a terrorist plot on U.S. soil. John Etterlee draws on his own combat experience to ground the action in realistic military detail.