Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Shadows in Amber | 2023 | Thomas K. Carpenter | Buy |
| 2 | The Emerald Eclipse | 2023 | Thomas K. Carpenter | Buy |
| 3 | The Sapphire Stratagem | 2023 | Thomas K. Carpenter | Buy |
| 4 | Chains of Obsidian | 2024 | Thomas K. Carpenter | Buy |
| 5 | The Bloodstone Rebellion | 2024 | Thomas K. Carpenter | Buy |
The Crystal Halls is one of the more recent additions to the Hundred Halls universe, published across 2023 and 2024. Each book in the five-book series centers on a different type of crystal magic — Shadows in Amber, The Emerald Eclipse, The Sapphire Stratagem, Chains of Obsidian, and The Bloodstone Rebellion — with the magical properties of each stone shaping the challenges the protagonists face.
The series builds toward a rebellion against forces threatening the hall system, connecting to the larger Hundred Halls continuity while giving new readers a self-contained entry point. The crystal magic system gives this series a distinct visual and thematic identity within the shared world.