You can open the puzzle door by clicking on 10 of the panels exactly once each. The panels are :
it is McM
Click these 10 panels exactly once each : All four panels in the 2nd row. The middle two panels in the 3rd row. All four panels in the 4th row.
Click on his card in your items bag.
in the castle library click mcm in the non-fiction section to get into the dungeon
Click 10 of the "card" panels exactly one time each: all four panels in the 2nd row the middle two panels in the 3rd row all four panels in the 4th row. (To reset the puzzle, close and reopen.)
under the library, you click on the McM label and stairs appear
Click once on each of these 10 panels : all four in the 2nd row, the middle two in the 3rd row, and all four in the 4th row.
What you do is when you go up into space you click on the coordinates and you follow tem
Click on Merlin (the mechanical owl) and the click on the "green thingy." Bingo! ;D
You must click a certain 10 of the 20 panels once each. The panels to press are :all four panels in the 2nd Rowthe middle two panels in the 3rd rowall four panels in the 4th row(This is from the starting position. Reset if any were moved incorrectly already.)
Go to the library and then there will be a sign that says McM. Click on it and you're in!
you have to finish the puzzle then click on the door