The Princess's note is in her bedroom in the left tower of the castle (cut off by the damage). It lets you look under Mordred's bed to find the coordinates to the Pewter Moon (which are X-56 Y-52).
(see related question)
Because kids were complaining that all the other islands were too easy, so Jeff (creator of poptropica) wanted to make a super hard island and make every other island after astro-knights hard as well. But kids were complaining that every island after Astro-Knights was hard! so they made a game guide for Astro-Knights
i do not know what you are talking about
Keep going to the right until you reach the windmill, which is the third section of the Island (the other two are the village and the castle).
just keep jumping on the other one counterclockwise
put the radioactive tube and replace it with the other jacked up radioactive tube
Travel to the giant asteroid at X-11 Y-82 to battle the Bard and save the Princess. You will need all three knights to pull the Golden Key and reach the other galaxy.
On Astro Knights Island, there are four "boss" robots, one for each planet and the final battle. This arrangement is similar to that of other video and computer games. You must beat all three planets to reach the final battle, because you need the three space knights to get the Golden Key that leads to Mordred's lair. (see the related questions for solutions)
the time in America will be 6:00 pm on may 31st 2009 and the other island will come out June 1st and that's what i know thanks for choosing me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ya just take them to the black hole around the other planet
You still have to go to the other two planets (jungle and fire) and defeat their robots. When you have all three knights, go to the asteroid at X-11 Y-82 to face the Binary Bard.
It is at X-11 Y-84 and looks nothing like the other asteroids. (see image links below)
After defeating all the planets in Astro Knights on Poptropica, you can continue to explore the island, complete other quests, customize your character, or play mini-games. There is no specific additional content related to defeating all the planets in this island.