Gregory's Serverhttps://eldritch.fandom.com/wiki/Worlds
The starting area is a library, and the worlds you venture through (Dagon, Nyarlathotep, and R'lyeh) are accessed through Strange Books
As the wiki notes: "The final portion of the game takes place where you begin. To reach the Endless Library stage one must collect all three Souls from each of the three Worlds and place each Soul on the three pedestals opposite the Library Door. The door will open and the Explorer can enter the second part of the Library"
@currentbias Oh thank you, I didn’t know that! I had that game for years in my Steam library and never played it. I think I’ll correct that :3.