A Fallen Angel *Unfinished*

Emily lost her best friend, Luke, in a car crash a few years back, but is puzzled when a new kid named Luke comes to school. They look exactly the same, and they talk the same. The only difference, her friend had brown hair and brown eyes. This boy had blonde hair and blue eyes. They become friends, and Emily discovers how much of a hero the new Luke is, until she finds out why...