True immortal

Set in right after the half-blood prince. Sigyn "Faye" Anasta goes on the run. Because of what she holds in her blood the key to true immortality. Fenrir has one mission to capture Faye Anasta alive and not to turn her. Never dreaming how hard that mission would be once he learnt that Faye Anasta was really Sigyn Anasta. His best friend from school and lover. Fenrir/OC