Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | The X-Ship | 2020 | Vaughn Heppner | N/A |
| 2 | Galactic Marine | 2022 | Vaughn Heppner | Buy |
| 3 | Sanctuary | - | Vaughn Heppner | N/A |
| 4 | Sleeper Ship | 2022 | Vaughn Heppner | Buy |
| 5 | The Soldier: Final Odyssey | - | Vaughn Heppner | N/A |
| 6 | The Zero Stone | 2022 | Vaughn Heppner | Buy |
| 7 | The Institute | 2022 | Vaughn Heppner | Buy |
| 8 | Neanderthal Planet | 2023 | Vaughn Heppner | Buy |
| 9 | The Science of Mu | 2023 | Vaughn Heppner | Buy |
| 10 | The Atlantis Equation | 2025 | Vaughn Heppner | Buy |
| 11 | The Pyramid of Mars | 2025 | Vaughn Heppner | Buy |
| 12 | The Atomic Vault | 2025 | Vaughn Heppner | Buy |
The Traveler is one of Vaughn Heppner’s more expansive series, running to 12 books published between 2020 and 2025. The series follows its protagonist through a galaxy full of dangers and mysteries, blending exploration with the military action Heppner is known for.
The books touch on a wide range of sci-fi concepts, from sleeper ships and zero stones to Martian pyramids and ancient equations. This variety keeps the series fresh even across a dozen installments, as each book introduces new settings and challenges.