first go to thelibrary in the castle. then go down the 3 or 4 steps. there will be a shelf click on the left side of it and a stair case will appear
you get mordred's bird and send him in the place that goes to the dungeon
find it yourself thanks click on some books in the castle library in the nonfiction place
The only place is in the castle dungeon, below the library. (see related question)
Nothing
Mordred's hoverboard uses manure, but the saucer needs a new power source. It has a broken Fuel Rod, and the only place to get one on Arturus is from the robot invader in the dungeon.
go to modreds place then go in the dungeon (you will need the owl) and then you let the alien self destruct then make the owl pick it up because you cant get it going throgh the libary
depending on where ur at in the stage the underground place is in the library, click on the little sign under the book shelf with the "McM"
go inside the place where the king and queen lives at the corner on the right
It goes to the mud swamp, which is the only place that you can use it.
no get the manure from the man next to the place with the mud next to it
Poptropica is not a real place. (In fact, in Astro Knights Island, we find out it is a planet in another solar system!)
After you get the coin the Museum of Mordred place and give it to the guy in there. Hope it helps.:)