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Underworld — by Apollos Thorne
The Underworld Series in Order (8 Books)
| Order | Book | Date | Rating | |
|---|---|---|---|---|
| 1 | Level Up or Die! | Nov-2017 | 0 |  |
| 2 | Through the Belly of the Beast | Aug-2018 | 0 | |
| 3 | Sanctuary | Feb-2019 | 0 | |
| 4 | Proving Ground | Feb-2020 | 0 | |
| 5 | Vampire Gate | Jul-2020 | 0 | |
| 6 | Scorching Sun | Feb-2021 | 0 | |
| 7 | Sanctuary 2.0 | Jun-2024 | 0 | |
| 8 | The Succubi | Jan-2025 | 0 | |
Frequently Asked Questions (FAQ)
There are 8 books in the Underworld series.
The Underworld series does not have a new book coming out soon. The latest book, The Succubi (Book 8), was published in January 2025.
The first book in the Underworld series, Level Up or Die!, was published in November 2017.
The Underworld series primarily falls into the Speculative Fiction genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.