"Its never wise to talk to strangers...and that goes double when theyre dead. Unfortunately, seventeen-year-old Anna Morgan has no choice. Resting on a park bench, touching the turnstile at the Metro station-she never knows where shell encounter a ghost. These mental hitchhikers are the reason Anna has been tossed from one foster home and psychiatric institution to the next for most of her life. When a chance touch leads her to pick up the insistent...

To stop her sadistic grandfather and his band of time travelers from rewriting history, Kate must race to retieve the CHRONOS keys before they fall into the Cyrists' hands, while dealing with her mounting feelings for fellow time-traveler Kiernan.

When Kate Pierce-Keller's grandmother gives her a strange blue medallion and speaks of time travel, sixteen-year-old Kate assumes the old woman is delusional. But it all becomes horrifyingly real when a murder in the past destroys the foundation of Kate's present-day life. Suddenly, that medallion is the only thing protecting Kate from blinking out of existence.

When a murder in the past destroys the foundation of her present-day life, Kate uses her genetic ability to time-travel to stop the murder and attempt to change the timeline--which may erase the memory of the boy she loves.