Sixteen-year-old Nix is more than a world-traveler--she's a time-traveler who's been traversing the great seas from one location and one decade to another on her father's ship "The Temptation" her entire life. But when her father finds the map that will transport them to Honolulu to the time before Nix's birth, which ultimately led to the death of her mother, Nix's very existence is at stake. And Nix realized that helping her father reunite with the love of his life could mean the end of her own.