How do you get under the fountain on Astro Knights Island?

Answer 1

The gold coin in the fountain will pay your admission to the Mordred museum. But you cannot access the secret entrance behind the plaque until you have the Cosmic Symbols password card.

You get the Cosmic Symbols card from the girl upstairs in the Mill. You will need the Secret Message from the Princess (in the maid's room, castle first floor, left side).

Once you have the card, go to the plaque and press the three symbols, then the Sun, and the doorway will open.

Answer 2

You can't get in through the library again. You have to come in through the tunnel that Mordred dug when he escaped (see the journal). The tunnel leads to his secret underground lab. To reach the cell by the back way, you do this :

1. Take the cheese to the Princess's Maid's room (1st floor of the castle).
2. Get the secret message and feed the mouse.
3. Take the secret message to the mill and talk to the girl in the loft. She will give you a secret password (cosmic symbols).
4. Go back to the fountain and open the secret passage : press the three symbols and the center sun.
5. Get the key to the secret laboratory.
6. Go to the hay bales on the farm and separate them.
7. Unlock the opening.
8. Go inside and wake up Merlin the owl.
9. Go outside and feed the mouse to the owl.
10. Push through the dirt wall. (Keep pushing, this was tricky!)
11. Enter the cell through the back way. (the switch you threw opened it)

Merlin will retrieve the fuel rod for you if you click him and then the rod.

(see related question)

Answer 3

To enter the dungeon under the castle library : # Get the gold coin from the fountain # Go to the Mordred Museum and get the library slip # Go to the castle library (first floor right) # Go to the non-fiction section (lower aisle) # Click the McM plate - the secret passageway will open

Answer 4

Push down the dirt wall to go down the hall in Mordred's underground lab.

*For the stairway in the library, you need the Library Slip from the Mordred Museum.

Answer 5

The river is currently a mud swamp. The only way to cross the mud is by using the hovercraft. (see related question)