Also, on the level where the entrace to Samuel's lair is, there's a room on the far western side. It's full of beds and has 2 manuscripts in it. If you put something into one of the chests in that room, it shows up in all three chests. I was hoping I could use this to dupe somehow, but if you take the item out of one of the other chests it dissapears in all three as well.