Final Voyage of the Remora (Demonstone Chronicles #2‪)‬

Alexander Tork assembles a small but deadly force for a voyage that may well be his last. Five Knights of Alcea, three Rangers, and three elves from Glendor set sail on a stolen enemy ship through uncharted waters to the enemy’s homeland. Guided only by a crude coastline chart found on the stolen ship, the Alceans find a vast continent that is preparing for global war.