1. Strange marks
It all started one day when a man known only by his YouTube username Cyrex686 was looking around his house. He'd always noticed there were strange markings on the wall, but he did not know what they meant or why they were there.
He asked about his building and he also asked his friends to look at the markings on his wall, but no one suspected what they were. For some strange reason, Cyrex686 could not get the markings out of his head.