In parallel you follow the people she left behind. It turns out that there are more time travellers around and what about her mother who mysteriously disappeared three years ago? The questions are mounting. The story continues to run parallel with past and present. I am now half way through and it is an easy read and stories within the story pops up along the way. It is the first story of the Graham saga of which the third one came out recently.
Here the beginning
The radio died first. Halfway through Enrique Iglesias' Hero there was a burst of static and the display went black. The dashboard lights gave up one by one, the steering wheel locked, the engine coughed, and the BMW glided to a stop by a crossroads.