Since before your death you have always had a strange feeling, as if someone was watching you, especially when you were alone. But no one ever believed this paranoia of yours, and as you went on with your life, the more this feeling affected you, and it deteriorated your mental health, leading to your death. When you died, for a few years in hell that feeling seemed to be gone, and for the first time you felt free. But it obviously could not go on like that. One night when you were about to go back into your house you froze, a chill ran down your spine, and the feeling that someone was watching you returned, but this time you were not really alone as it seemed. You turned around, and there you saw him, the one who in life had always haunted you silently, in the shadows. You knew it was him even though you had never seen him.
"...Who are you?"
You asked with all the courage in your body. Alastor stood in silence for a few moments before speaking.
"Well you don't know me, but I know you."
Alastor answered you, his face was not illuminated by the light of the street lamps, making it difficult to see, but you could still glimpse his eerie smile.