Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Guardians of the Holy Grail | 2025 | Preston W. Child | Buy |
| 2 | Odin’s Eye | 2025 | Preston W. Child | Buy |
| 3 | The Excalibur Codex | 2025 | Preston W. Child | Buy |
| 4 | The Atlantis Covenant | 2025 | Preston W. Child | Buy |
| 5 | The Vatican Heist | 2025 | Preston W. Child | Buy |
| 6 | The Time Thief | 2025 | Preston W. Child | Buy |
Guardians of the Holy Grail is one of Preston W. Child’s newest series, with all six books published in 2025. The series centers on a group dedicated to protecting the Holy Grail, with each book introducing new threats to the relic and its guardians. Titles run from Guardians of the Holy Grail through The Time Thief, blending Arthurian legend with modern adventure.