Remnants of a Scarlet Flame: The Last Draegion Saga Book 1 by Cindy L Sell

The sorcerers have taken everything from Alar’s people. When a leader of the Syljian resistance is captured, Alar must leave his post as a spy in the Sorcerers’ Guild to prevent a war his people can’t win. But no rescue mission ever goes according to plan, and no prison break is ever easy.