Digressiophobia - The beginning mod for Amnesia: The Dark Descent

Mark and Simon had known each other since college. Every friday they visited each other. Sometimes the visit lasted the whole weekend. Other times one of them went home friday night. it was easy because they lived close to each other. Mark had his own house next to an old library. Next to it was a 3-storey building. Simon was renting an apartment at the second floor, while he was studying. Simon wanted to be a psychologist. He was still a long way from finishing it, but he studied hard to get there.
It was saturday evening, and Mark was visiting Simon. He'd agreed in staying until sunday. Simon needed a book for his studies, so the two friends went to the old library, even though it was about to close.