Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Primordial Earth: The Prequel | 2022 | Baileigh Higgins | Buy |
| 2 | Primordial Earth: Book 1 | 2020 | Baileigh Higgins | Buy |
| 3 | Primordial Earth: Book 2 | 2020 | Baileigh Higgins | Buy |
| 4 | Primordial Earth: Book 3 | 2020 | Baileigh Higgins | Buy |
| 5 | Primordial Earth: Book 4 | 2021 | Baileigh Higgins | Buy |
| 6 | Primordial Earth: Book 5 | 2021 | Baileigh Higgins | Buy |
| 7 | Primordial Earth: Book 6 | 2021 | Baileigh Higgins | Buy |
| 8 | Primordial Earth: Book 7 | 2021 | Baileigh Higgins | Buy |
| 9 | Primordial Earth: Book 8 | 2021 | Baileigh Higgins | Buy |
| 10 | Primordial Earth: Book 9 | 2022 | Baileigh Higgins | Buy |
The Extinction series, also known as Primordial Earth, takes Baileigh Higgins’s survival fiction in a different direction. Instead of zombies, characters face dinosaurs and prehistoric predators. Ten books, published between 2020 and 2022, follow survivors through increasingly dangerous encounters with creatures from Earth’s ancient past.
The series starts with a prequel that establishes how modern humans end up in a primordial world, then runs through nine numbered installments of escalating danger. For readers who enjoy Higgins’s survival writing but want a break from zombies, the Primordial Earth books offer the same life-or-death tension in a very different setting.