Centurion of the Titans: From Slave to King - Titans Ascendant, #4

In the sprawling reaches of the mighty Roman Empire, Marcus Tiberius stands as a seasoned and revered Omega general. A witness to both the triumphant glories and harrowing defeats on the battlefield, he has earned a reputation as an indomitable force. When fate placed the fierce barbarian warrior Lysander Ironclaw in his custody, his duty was clear: break him. Yet, Lysander's unyielding defiance intrigues him, stirring something deep within.
The intensity of Lysander's spirit ignites a fire inside him that is dangerous and exhilarating. Bound by the chaos of their conflicting loyalties, Marcus is torn between his commitment to Rome and the undeniable allure of the man who should be his foe. Can they defy the odds and protect the flame that burns between them, or will their love be extinguished by the forces that seek to tear them apart? Warning: this is a MM historical fiction Viking/ Roman romance, mm romance werewolf shifters, mm paranormal romance, mm first-time romance, mentions of past  assault, mm enemies to lovers, assassination attempts, and a HEA. This is book five of the Titans Series, although it can be read as a standalone it's best to read the first book.