Nix has spent her entire life aboard her father’s ship, sailing across the centuries, across the world, across myth and imagination. As long as her father has a map for it, he can sail to any time, any place, real or imagined: nineteenth-century China, the land from One Thousand and One Nights, a mythic version of Africa. Along the way they have found crewmates and friends, and even a disarming thief who could come to mean much more to Nix. But the end to it all looms closer every day. Her father is obsessed with obtaining the one map, 1868 Honolulu, that could take him back to his lost love, Nix’s mother. Even though getting it—and going there—could erase Nix’s very existence. For the first time, Nix is entering unknown waters. She could find herself, find her family, find her own fantastical ability, her own epic love. Or she could disappear.

Some things should not be stolen. After what seems like a lifetime of following her father across the globe and through the centuries, Nix has finally taken the helm of their time-traveling ship. Her future—and the horizon—is bright. Until she learns she is destined to lose the one she loves. To end up like her father: alone, heartbroken. Unable to face losing Kashmir—best friend, thief, charmer extraordinaire—Nix sails her crew to a mythical utopia to meet a man who promises he can teach her how to manipulate time, to change history. But no place is perfect, not even paradise. And everything is constantly changing on this utopian island, including reality itself. If Nix can read the ever-shifting tides, perhaps she will finally harness her abilities. Perhaps she can control her destiny, too. Or perhaps her time will finally run out.