Sea Monsters in Shrimp Harbor

From publisher blurb: Shrimp Harbor is a peaceful community composed mostly of fishermen. Sahuagin swam to these waters looking for more food and stumbled upon the shrimp fishing village. They organize raids and assaults. They have been stealing the town’s reserves for days now. The poor farmers and fishermen are no match for the speared amphibians. The guards have trouble fighting these vermin in the water, their habitat. The village needs the help of more skilled warriors.