If you are wanna know how to win Astro Knights, because personally that one is the hardest so far, read on.
1: Go to the fountain with the rocket sticking up out of it. You will see a twinkling point in the fountain. Walk over it, and you'll get a gold coin. You can now enter Mordred's Museum.
2: Go into Mordred's museum, and click on the pile of books next to the bed. You'll then receive a library slip.
3 Now go to the castle. Inside, go to the king and queen,(the only door on the top floor) Get the coordinates from the queen.
4 Go to maid's quarter's (the door to the left of entering.) Walk over to the chest, and you will get a note.
5 Go to the boy who is standing near the windmill (the one nearer the bales of hay.) Click on him, and he will give you a bag of manure. Then got to the windmill. Next to it, is a ladder, and on top of that is a rope. Get it.
6 Go to the castle and use the rope when you are standing next to the big bow and arrow. Shoot th arrow to side leading back to the inn, and the museum. You are aiming to hit the door on the fartherst tower. When you hit it, walk across the tight rope and go inthe door. Go to the chest and collect the princesse's note (the only thing there.)
7 The note says to look under Mordred's bed (in the museum,) and when you do you will find a missing page from Mordred's Journal. On that page it has coordinates, which you will need to enter to launch excalibur. (watch video)
8 Go back to the windmill and go inside. Talk to a girl who looks kinda emo, and collect a note from her.
9 Go to the fountain with the rocket in it. Click on the plaque, and use the slip you got from the emo girl to figure it out. Go into the foutain, and talk to the guy furthest from the entrance. You will get a key.
10 Go back to the castle, and go into the library. Collect the two books (you'll know which ones becuse they looke more intact, but just walk over all of them.) Then clickon the Mcm in the non-fiction section. Go down the secret passageway and collect the cheese. and then exit again.
Watch the video to get a further walkthrough.
Go to youtube and search up poptropica astro knights island part 3, and you'll get the next bit after the video. By the way, you can make your rocket anyway you want. (watch video to understand)