Cursed Artifact #2/6: When you find the exit to the library stack maze (the door with the lit “exit” sign), make a left. The collectible is a lamp between two computers on the desk.
#3/10 (Librarian Ghost): Scan her the first chance you get.
#4/10 (Paper Construct): You’ll first encounter these enemies in the dark library stack maze.
#5/10 (Book Bats): After you’re reunited with Ray (he comes flying into the room on the conveyor belt), you’ll be a attacked by a swarm of Book Bats.
#6/10 (Crusto): During the Book Bat fight, Crusto will appear (along with Cruster; the two look almost identical).