First go to Morod's lab and get the computer to work. Then send a photo to the king and queen and they will give you a piece of cheese for luck.
Written By Usan Bolt
In the undergroud part of the libary
go to the secret door
To obtain the moldy cheese in Astro-Knights on Poptropica, you need to first find the rats in the secret dungeon. They will steal the moldy cheese from you, which you can then retrieve by using the Rat Trap item in your inventory.
the mouse is in the princesses room in the hole in her wall but you have to get the cheese to get him/her.
After you get the cheese you put it in the princesses dressing room and capture the mouse to feed it to the owl.
just walk pat it and it will pick it up
get the moldy cheese from the basement of the castle and lay it out in the bed room
go to the princesses maid's room and use it you will get the robot mouse
Find the old cheese. . Give the cheese to the mouse and give the mouse to the owl.
In the Maid's room (castle first floor left), feed the cheese to the robot mouse.
Use the cheese to get the owl then go to the cave entrance and click on the owl and he'll get it
You get the chese for a mouse in the left room in the destroyed castle in astro knights in poptropica