How do I open the door next to the glass window?
  • 1 of 9: This is another puzzle.
  • 2 of 9: You need to find a special key.
  • 3 of 9: Check out all book cases.  One of them has a secret panel.
  • 4 of 9: The top shelf of the bookcase at the far left when you're facing the desk has a removable panel that looks like a series of books.
  • 5 of 9: Get the metal cross out of it and use it on the glass window with the sword on it.
  • 6 of 9: You need to find the correct spot where the cross has to be placed.
  • 7 of 9: Look at the shapes that are displayed.
  • 8 of 9: The cross goes in the bottom left square.
  • 9 of 9: Take the card from the cabinet that opened.