The 57 Lives of Alex Wayfare

For as long as Alex Wayfare can remember, she has had visions of the past. Vivid visions that make her feel like she's really on a ship bound for America, or riding the original Ferris wheel at the World's Fair. It isn't until she meets Porter, a stranger who knows more than should be possible about her, that she learns the truth; her visions aren't really visions. Alex is a Descender -- capable of traveling back in time to her past lives. But the more she descends, the more it becomes apparent that someone doesn't want Alex to travel again. And they will stop at nothing to make this life, her fifty-seventh, her last.