Dark Queen

No stock arriving in their warehouse and still staff to pay leaves the crew little option other than to find the source of the trouble.
More recruit soldiers. More weapons. More battle chariots and wagons and another war boat set sail towards a land cloaked by magic and whispered to be controlled by a woman known as the Dark Queen who no one is able to, or wants to identify. With the added suspicion that there are spies within their staff, and the knowledge that their spirit wife is unable to help, Cal and his wives set sail to reclaim their trading empire or die in the process.

An easy to read fantasy adventure loosely set in the Ancient Roman Empire.