The Princess note is in the maid's room of the castle (first floor left). The secret message is on a table to the right of the bed. You should take this with you and go upstairs inside the mill.
The second message from the Princess is in her room in the tower. Get the rope from the side of the mill, attach it to the giant bow at the castle, and shoot a line over to the door (you get several tries). The note lets you look under Mordred's bed in the Museum, where you find his missing journal page.
Go to the fountin and click on the souler system panel and enter the code
You show her a secret message from the Princess. You find it in the Maid's room (castle first floor left).
go to the secret door
If you have the Secret Message from the Princess (from the maid's room in the castle), the mill girl will give you the password to the secret room below the fountain. (see related question)
The secret message from the Princess is in her Maid's room (castle, first floor left). There is another note by the Princess in the left tower which is now disconnected from the castle. (see related question)
You need the Princess's secret message from the maid's room (castle first floor left).
There is no wishing well on Astro Knights island. There are :The spaceship fountain - there is a gold coin in the water, and if you take the secret message from the castle to the mill, the girl there will give you the password to open the secret passage under the fountain.The underground lab - Mordred's secret lab is hidden under the two bales of hay on the farm, and you will need the key from the secret room under the fountain.
You do not get or use a bucket on Astro Knights Island.
On the first floor of the castle, left side door. There is a secret message there, as well as a mechanical mouse. (see related question)
There is no wishing well on Astro Knights island. There are :The spaceship fountain - there is a gold coin in the water, and if you take the secret message from the castle to the mill, the girl there will give you the password to open the secret passage under the fountain.The underground lab - Mordred's secret lab is hidden under the two bales of hay on the farm, and you will need the key from the secret room under the fountain.
There is no treasure chest on Astro Knights Island.
Go inside the castle and go to your left.The secret message is by the mirrow