Stargate SG1-01: Trial by Fire by Sabine C. Bauer
The description for Trial by Fire
On a hidden world…
Tyros – an ancient society teetering on the brink of war. A pious people, the Tyreans are devoted to the Canaanite deity, Meleq. When their spiritual leader is savagely murdered during a mission of peace, they beg SG-1 for help against their sworn enemies, the Phrygians.
Initially reluctant to get involved, the team have no choice when Colonel Jack O’Neill is abducted. O’Neill soon discovers his only hope of escape is to join the ruthless Phrygians – if he can survive their barbaric initiation rite.
As Dr Daniel Jackson, Major Samantha Carter and Teal’c race to his rescue, they find themselves embroiled in a war of shifting allegiances, where truth has many shades and nothing is as it seems.
And, unbeknownst to them all, an old enemy is hiding in the shadows…
You can find this book at most online book stores.