Ekyu: Yes, I was thinking about what you said, but at the end: "What is with this 'mark'"?
Iapetos: I think i never said i don't believe in ap. The mark was not there that night, because everytime before I go to bed I take a good refreshing shower. It wasn't there at that moment. And it just don't want to come down with anything...
And by the way, I hope its not a demon... I just said "demon" because thats the only thing i can compare the creature.
Thanks for the answers guys!