Nix has finally taken the helm of her father's time-traveling ship. Her future lies bright before her-- until she learns she is destined to lose Kashmir, her best friend and a thief. She sails her crew to a mythical utopia to meet another Navigator who promises to teach her how to manipulate time. But nothing is what it seems. Nix must learn to harness her abilities-- before her time runs out. Sixteen-year-old Nix confronts a terrible choice about her relationship with best friend and thief Kashmir when she learns that she is destined to lose the person she most loves.