In the 1913 Florida Everglades, seventeen-year-Emma O'Neill samples an elixir from the Fountain of Youth with Charlie Ryan, her first love. For the next three years, the two and their families live in isolated bliss . . . until the wrong people catch wind of their discovery. The magical waters have made them impervious to aging, but not to murder. In the ensuing bloodbath that takes their families, Emma and Charlie are separated. For the next 100 years, Emma wanders the world, evading the murderers and their descendents--and searching for the perpetually seventeen-year-old boy she's certain is still out there.