Survivors of Fire & Ash - The Elemental Swords, #1

A prequel to the Legends of Arria series set over 2, 000 years before, this is the beginning of Arria's founding and the ancient Knights of Arria. An oracle named Wintha foretells the destruction of the island of Corrica, the seat of a harsh Romanesque empire. A scholar named Mogame predicts the mountain will erupt in ash and flame. A former gladiator named Zeldos must escape his cruel master, Memba, the dictator that has just risen to power.
A centurion and legionary, Hasbas and Marko, must band together to save their families. Together they flee on a long-ship, rowing across the unforgiving ocean. When they pass through a wall of mist, they discover a hidden magical world where legendary creatures exist. People can possess unimaginable power, and become mages and sorcerers. But as they settle down in their new home, tragedy strikes. They're attacked by a hostile band, the Savorre, led by warlocks and Blood-Drinkers, including Yagidehama.
Can they survive, or will they be torn apart?