Buckingham Palace: After the Theft

How can I follow Lupin down to the cellar?
How can I get through the locked door in the gift room?
How can I pass the second locked door, with the Roman Numeral lock?
How can I get through the trapdoor in the Norman room?
How can I escape from the Native American room?
How can I get out of the game room, and the room beyond?

Up One Level