you get in between the two stacks of hay but, you have to have the key. to find the key you go down into the fountain and you'll have to ask alot of questions to get it.
The key unlocks the entrance to Mordred's hidden underground laboratory. (You will find it under two bales of hay.)
There are two books in the library and one in Mordred's laboratory.
There is a hidden stairway to the dungeon in the castle library, and a hidden opening under the fountain.
Nothing, actually. Hidden between the two bales (trapped between the rocks) is Mordred's secret laboratory entrance. You will need a key.
The owl is in Mordred's hidden laboratory, underground below the hay bales near the mill. You will need a key to get in. (see the related question)
You do not get or use a bucket on Astro Knights Island.
The workshop of Mordred is hidden in an underground chamber, its entrance under two hay bales on the mill farm. You will need a key to open it. (see related question)
There is no treasure chest on Astro Knights Island.
You have to come in the tunnel that Mordred first dug to escape. When you flipped the switch in the dungeon, you opened the gate at the back of the cell. You can get in that way if you reach Mordred's hidden laboratory.
There are no bird eggs in astro knights island.
its on the island
In Mordred's underground laboratory, the wall to the left is just dirt and can be pushed down.