On the Fountain Plaque (Arturus)
To enter the secret room under the fountain, you will need the Cosmic Symbols password card. Take the secret message from the maid's room (castle first floor, left) and go to the upper floor of the Mill. The girl there will give you the password - on the fountain plaque, press the three symbols, and the Sun, to open the doorway. (If you don't have the cosmic symbols card, the plaque does not work.)
In your Spaceship
Click on a planet to land there.
it is McM
The coordinates for the three planets were on the card given to you by the Queen. When you arrive at the planet, click on it to land. You must defeat all three planets (Jungle, Ice, Fire) before you can rescue the Princess.
When you get in the space shuttle the big green screen on the "dashboard" if you click it then it will tell you where planets are including the fire planet
There are no plants to click on. You click on the lower shelf in the castle library (McM) and click the "planets" when you arrive at them. On the Jungle Planet, the elevator plants work automatically when you jump onto them.
Click on his card in your items bag.
in the castle library click mcm in the non-fiction section to get into the dungeon
under the library, you click on the McM label and stairs appear
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
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
Feed the mechanical mouse to Merlin and he will follow you to the dungeon. Click on the owl, then click on the fuel, and he will retrieve it for you.