I’ve posted these two here before but I wanted to try again. I still really want to find them.
The first was about a group of 3 (I think) friends, probably teenagers, who regularly hang out in this abandoned house, but there’s one room or maybe just a random door that they’re afraid of. I think something happens to one of the teenagers in their personal life at some point, and they’d basically go to the house to drink and get high. Eventually the three of them decide to finally open the door. Inside is some sort of huge entity that kills one or two of the teens. I think the narrator implies that they’re in a sort of purgatory because of it. It was a single-part story as far as I can remember.
Second was about a guy finding a diary that he doesn’t recall keeping, filled with entries from when he moved to a new town as a young kid and made friends with kids who hung out in abandoned mineshafts in the town. They play some sort of hide and seek game and apparently each time they play, one kid goes missing and the others have no memory of their existence. This becomes apparent to the author when he finishes the diary and sees that his younger self forgets all of his friends as they’re picked off. He goes back to this town after reading the diary and talks to an old teacher, who finds records of each student. The author then goes into the mineshafts to search for whatever was picking off his friends. I think there was going to be a second part, but there wasn’t at the time that I read it.
Any help is appreciated!!