Mordred's Fortress

Mordred's Fortress is where Mordred is hiding the Princess of Arturus. It is found in a seperate dimension which can be accessed via the Crystal Gate.

Role in Astro Knights Island
This is where Mordred build his robot. The Chosen One defeated him and rescued the Princess of Arturus here, he was trapped in his fortress until he was sent to Erewhon.

Trivia

 * The door to this fortress is sealed with a riddle. You must flip over all the flaps that make up the door and each time you click one flap, the flaps above, beneath and next to it will flip over.