Everlasting - Elizabeth Chandler

Ivy should be ecstatic that her formerly-dead boyfriend Tristan is back on earth with her, but the life of a fallen angel is never easy. Tristan has been cast down from heaven and is now trapped in the body of a murderer. With the police hot on his trail, Tristan and Ivy realise that the only way for them to be together is if they can somehow clear Tristan of the murder he didn't commit.

But when it becomes clear that there are darker forces at work, Tristan and Ivy discover they are paying a high price for Ivy's miraculous survival of the car crash. There is more at stake than ever before for Tristan and Ivy, and it seems that one of them may not be alive much longer…