it's in the astro belt at the bottom left coner area.you have to defeat the planets and have all the knights with you to get to the castle. once you have all the knights with you go to the astro belt then, go to the sword key and pull it out. after that you jump in the spining wheel thing.
Nothing
The arrow is at the castle
if you mean in astro knights, the mcm is in the library in the castle
There is a castle on Astro Knights Island, in the kingdom of Arturus.
On the top of the castle
You get the chese for a mouse in the left room in the destroyed castle in astro knights in poptropica
You get it in astro knights island. you go to the guy to the right of the castle and he will give you some.
THE LIBARY [1 floor in castle right door]
you put it in the room with the mouse in the astro knights castle and the mouse will eat it
In the castle on main street go in the door on the first floor
you push the wall were you find the robotic owl until it breaks
One common glitch in Poptropica's Astro Knights Island involves getting stuck at Mordred's castle door. To bypass this issue, try resetting the quest by leaving the castle and re-entering, or restarting the island entirely. If the glitch persists, consider contacting Poptropica's support team for further assistance.