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. 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.