Sleepless Nights ( 5SOS fanfic )

Ellyna Lefevre has been having nightmares of the night where her parents died. One day, there was a sudden closure of a Danevore Boys school and they were transferred to the girls school she was in. Then she bumped into boy name Calum and his 3 mysterious friends - Luke, Michael and Ashton. Who is he and why does he look like the guy her nightmare?