i cant really explain it step by step, but on Google there is a video guide that is only 1 minute long and it shows you how to complete it. so, on google search: "how do you solve the puzzle on astro knights" and then click the first video. that's how i completed it!
Look in the book Donal gave you!
to get through Mordred's door, u must figure out the puzzle........ u have to reveal the whole picture. if u still can't figure it out, go on youtube for cheats and type in poptropica astro knights. the first time i got to mordreds door i couldn't figure it out, too
Click everything in the 2 row, the 2 middle ones in the 3, and everything in the 4
Into the castle. To follow him, you have to solve the puzzle door. (see the related question)
how can a solve a jackaroo stirring puzzle
how can a solve a jackaroo stirring puzzle
which puzzle is that which island is it on
Yes, I can solve the mouse maze puzzle
To enter Mordred's castle, solve the door puzzle. Click once on each of the 4 cards in the second row, the two middle cards in the 3rd row, and the 4 cards in the 4th row.
puzzle 22
Click on it to move into a different room of that scene and solve the puzzle.
It is at the castle, in the ballroom.