After you defeat the ice plant you go to the fire plant or jungle plant. But if you were already there you can go to the asteroid belt where there is a castle shaped like an asteroid.
go into the dungeon
go to the EMO girl in the MILL
go to south part of space then go left and your there!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:)
If you didnt already beat fire planet beat that. Or find the crystal rock thing.
Beat the 3 planets go to the crystal click on the key
You can't. You have to go to the 2 stacks of hay, get in and push your way into the cave. Check the walkthrough on YouTube
you get in a space ship and go to a planet.
you should go to an island, not a planet, and it should be the first one ever, early poptropica!
On poptropica, when you get to the asteroid belt, if you are looking for Mordreds little castle that holds the key, go to: X 12 and Y 80. There you will find the little asteroid Mordred is hiding on.
fire planet
get the rope, shoot an arrow, find the note, search the bed, get the glow stick, go for a crash landing
you can go on youtube and search up astroknights walkthrough and watch part 2/4 or 3/4 and then you will find your answer.