The Binary Bard is revealed as Mordred.
To solve the puzzle, you have to press 10 of the panels exactly once each. They are arranged in 5 rows of four cards each. The easiest way is to press each card in the 2nd row exactly once (in any order). Then press only the middle two cards of the 3rd row. Then press each card in the 4th row. (for a numbered version see below)
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The puzzle door is made of twenty panels; 4 in each row, and 5 rows. Numbered from upper left they are:
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
17 18 19 20
Press the panels in this order: 5, 6, 7, 8, 10, 11, 13, 14, 15, 16. As long as you press each one of the cards in the 2nd and 4th rows, and the middle ones of the 3rd row, the result is the same.
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Due to a flaw in the game program, you can begin the final battle WITHOUT solving the door. When you arrive, ignore the "Princess" and select "enter" instead, which bypasses the puzzle. (This doesn't help if you've already talked to the "Princess".)
(see related link)
* To enter Mordred's castle, press all four panels in the 2nd row, the middle two panels in the 3rd row, and all four panels in the 4th row of the puzzle.
In the final battle scene in the Bard's planetoid castle, use the "skip" button to skip the video after you see it the first time. The battle is easier once you know how. (You and Merlin share a limited amount of health, so avoid being hit or you must start over.)
Briefly
Pick up the bombs, and when they flash red, drop them on the orb. When Merlin is knocked out, jump on the warrior. The Princess will say that you have to jump on the hanging light. Do both sides, and the suit is destroyed. The Princess will be let out of the chamber, to knock out Mordred and take the orb. (You won!)
NOTE: Mordred will only move after firing at you, so you must be on the chandelier quickly, and he will roll underneath.
Once you defeat all three planets (jungle, fire, ice) and have all three knights with you, travel to the Giant Asteroid in the Asteroid Belt (X-11 Y-84) and use the Golden Key to open the portal to the other galaxy where the Binary Bard (Mordred) is hiding.
Logically, it only requires you to press 10 of the panels one time each :
Press all four of the panels in the 2nd row.
Press the middle two panels in the 3rd row.
Press all four panels in the 4th row.
When you first arrive at the door to Mordred's castle on the asteroid, and are met by the "Princess" (the Binary Bard in disguise), you can bypass the puzzle and keep your weapons. But this does nothing to alter the final battle.
When you see the "Princess", click on the door behind her, and you will start the final battle while keeping the three mystical weapons as "souvenirs".
(see related question)
In the first half of the battle with Mordred's robot suit, dodge the red spinner blades and grab one of the bombs that Mordred is dropping, when it is black. Red ones are about to explode. Pick one up, fly above the suit, and drop it when it turns red. After two of these hits, Mordred zaps Merlin.
Merlin is your helpful robot owl. Mordred is the villain.
(see related question)
He is only Mordred until he reaches his workshop (when you use the Stopwatch to open the door). For how to get his totem, see the related question below.
you push through
You go into Mordreds lab and grab a paper and turn it into her.
One common glitch in Poptropica's Astro Knights Island involves getting stuck at Mordred's castle door. To bypass this issue, try resetting the quest by leaving the castle and re-entering, or restarting the island entirely. If the glitch persists, consider contacting Poptropica's support team for further assistance.
you have to finish the puzzle then click on the door
find the coordinates to the moon under mordreds bedA pop. winner
You do not get or use a bucket on Astro Knights Island.
There is no treasure chest on Astro Knights Island.
mordred's missing journal is in his study. his missing page is under his bed.
buba dizzle
There are no bird eggs in astro knights island.
The key unlocks mordreds secret lab. You can get there by seperating the two hay bales.
a puzzle