In the tropical-island region known as the Frees, magic is growing stronger, and gunpowder is becoming less reliable. Amid this world of "swashbuckling, intrigue, and a dash of magic," two adventurers literally run into each other and are forced to fight together against pirates, sinister assassins and powerful merchant families, in the process developing a most unlikely friendship. Tesca is the Left Hand, a spy and assassin serving the Duke of Kohaya, ruler of one of the independent realms within the Frees. Kayrla is a sailor and sometime pirate with a few magical tricks up her sleeve....