The 13th: Frozen Destiny

This is a short (15,000 words long) paranormal fantasy.

In the haunted ruins of an old monastery, seven teenagers have gone missing in recent years. Kate, who is the Soul Reaper and helps ghosts who can't cross over by themselves, goes with her friends during their summer vacation to investigate. Once there, they find themselves tangled up in the deceptions of the dead, trapped like flies in a spider web.