Gray Team series
From Halopedia, the Halo wiki
The Gray Team series is the retroactive name given to Halo novels focusing on Spartan-II Gray Team, written by Tobias Buckell. It consists of Halo: The Cole Protocol (2008), and Halo: Envoy (2017).
Novels
| Title | Cover | Author | Audio book narrators | Publication | Summary |
|---|---|---|---|---|---|
| Halo: The Cole Protocol | 
|
Tobias Buckell | Jonathan Davis | 2008 | Introduces Gray Team and details the backstories of Jacob Keyes and Thel 'Vadam. |
| Halo: Envoy | 
|
Tobias Buckell | Scott Brick | 2017 | Follows Melody Azikiwe on a diplomatic mission on Carrow, while searching for a way to rescue Gray Team from captivity. |
Continuity
This series shares narrative connections with the short story Oasis from Halo: Fractures, with Halo: Envoy essentially acting as its sequel.
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