After her family is killed by corrupt warlord Aric Athair and his bloodthirsty army of Bullets, Caledonia Styx is left to chart her own course on the dangerous and deadly seas. She captains her ship, the Mors Navis, with a crew of girls and women just like her, who have lost their families and homes because of Aric and his men. The crew has one mission: stay alive, and take down Aric's armed and armored fleet. But when Caledonia's best friend and second-in-command barely survives an attack thanks to help from a Bullet looking to defect, Caledonia finds herself questioning whether to let him join their crew. Is this boy the key to taking down Aric Athair once and for all . . . or will he threaten everything the women of the Mors Navis have worked for?

The second book in a heart-stopping trilogy that follows the captain of an all-female ship intent on taking down a vicious warlord's powerful fleet. Caledonia may have lost her crew, but she's not done fighting yet. After nearly dying at the hand of a powerful foe, Caledonia is pulled from the sea and nursed back to health by a crew of former Bullets that call themselves Blades. The Blades escaped Aric Athair's clutches and now live a nomadic existence, ready to disappear at a moment's notice should trouble come their way. But Caledonia wants to do more than just hide. She wants to find the Mors Navis and her beloved sisters. She wants to continue fighting Aric's fleet and to take back the Bullet seas. She'll need to do everything in her power to convince the Blades that fighting is their only option, that there has to be a life better than the one under Aric Athair's reign, and that finding the women of the Mors Navis is the first step to revolution.

In this conclusion to the Seafire trilogy, Caledonia Styx will risk everything—her heart, her crew, and even her life—to defeat Lir and take back the Bullet Seas once and for all. Aric Athair is dead. But the fight for the Bullet Seas is far from over. Caledonia's nemesis, Lir—the one responsible for getting her parents killed and for turning her brother into a Bullet—has seized control of the warlord's army. Caledonia and her crew have fled to Cloudbreak to prepare for an all-out war. And they are not the only ones. Defecting soldiers begin to show up in droves to join their fight. But just as it seems like the tides might be turning, a surprise attack decimates the growing rebellion. Desperate, with much of her crew missing or worse, Caledonia is forced to make an unlikely and unsteady alliance with a new enemy. It's a gamble that could cost her everything, but with the fate of the seas in her hands, Caledonia will do whatever it takes. War has come, and it's time to sink or swim.