The pirate crew of the Lady Luck lives by many rules, but chief among them is this: they do not allow men on board. That’s a rule that quartermaster Grace Porter is willing to break when a shipwrecked young nobleman offers her information of an omniscient map, stolen from his warship by an enemy vessel. Until now, the map was only the stuff of legend… but with its help, Grace may finally be able to hunt down the Mordgris, the sea monsters who stole her mother away from her. Unfortunately, some members of her crew have other plans... To find the map and face the Mordgris, Grace will have to confront her past, put the Luck between warring nations, and uncover treachery aboard the ship. And ultimately, her revenge and the destruction of the Mordgris will come at a hefty price: the betrayal of her crew. Grace promised them they wouldn’t regret this. She just isn’t sure that she won’t.

What’s a pirate without her crew? Abandoned on an island and left for dead, pirate Grace Porter has no idea how she’ll save the crew of the Lady Luck from the traitors in their midst... until an unexpected ally appears, bringing new hope with them. But Grace hadn't counted on the fact her new alliance means she'll be forced to confront her past—not to mention, her strange connection to the sea monsters who stole her mother. A connection that's only growing stronger. Now, armed only with her wits and the stolen scrap of a magical map, Grace races off in hot pursuit of her ship, desperate to reach the Lady Luck before her enemies can rain destruction and havoc upon them. Grace prays she finds them first, but the clock is ticking. And she may already be too late. The second fantasy novel in this YA pirates adventure series will continue to enthrall fans of Daughter of the Pirate King, Seafire, and To Kill a Kingdom.

Is her pirate revenge worth the price she'll have to pay? Pirate Grace Porter has lost both her mother and her crew—her family—to the monstrous Mordgris creatures. But it never would have happened if it not for the villainous pirate Whighorn. Tracking Whighorn to a mythical island, Grace must grapple with her slipping grip on her humanity as she succumbs to a darkness in her. A darkness that isn't just her pirate experience talking. It's something deeper. Something ancient. Something in her blood. And she’ll have to decide if her revenge on Whighorn and the Mordgris is worth sacrificing what she has left—what she holds more dear than any treasure she's ever encountered. Her soul.