Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Irregular Scout Team One | 2022 | J.F. Holmes | Buy |
| 2 | Lost Boys | 2023 | J.F. Holmes | Buy |
| 3 | Civil War | 2023 | J.F. Holmes | Buy |
| 4 | Bad Company | 2024 | J.F. Holmes | Buy |
| 5 | End of Days | 2025 | J.F. Holmes | Buy |
IST-1 is a five-book series that follows an irregular scout team operating behind enemy lines in a hostile, post-apocalyptic world. The series began with Irregular Scout Team One (2022) and has grown steadily, with End of Days arriving in 2025.
The books connect to Holmes’s larger Zombie Killer Blues setting and share that series’s focus on small-unit military operations. Lost Boys (2023), Civil War (2023), and Bad Company (2024) filled out the middle of the series before the concluding volume.