Don't mind the switch for now, you'll be able to trigger it later.
The book taking you to a separate screen tells you the code you need to decipher other books.
How does that "deciphering the other books with the code" puzzle work? I'm at the Sanctuary dungeon now. I found a book that took me to another screen with 4 columns of 5 letters each going down and another one that said "ABCDEFGDHCFIDHABCD".
1 last question: How do I get past the 2nd maze in the Sanctuary dungeon (At the top part of the map)?
Edited by KEM64, 16 June 2013 - 09:30 PM.