Astro-Knights island is one of the newest islands on the popular kids game, Poptropica. This is a brief walkthrough of the mission for anyone who is having trouble getting through it. It's one of the largest and most complicated missions in Poptropica. You can also visit my Poptropica Cheats site for a full Astro-Knights walkthrough with more screenshots, videos and tips.

The story is that you need to rescue a princess who has been kidnapped. To find her, you need to build a spacecraft and then go on an intergalactic quest to return her and save the Kingdom of Arturus. Arturus is a medieval kingdom, but with space-age technology. This Poptropica mission is a lot of fun and has some really difficult and challenging parts.

Here is the walkthrough for the first part of Astro-Knights Island. This part covers all the things you need to do on Arturus.

• Go to the fountain and jump on it to get the coin.
• Go inside the first building, called the House of Mordred and talk to the guy. Use your coin and he will take it.
• Click on any one of the books and the guy will give you a library slip.
• Go outside and run all the way to the right. Go all the way to the right again and you will arrive at the Castle of Arturus.
• Walk to the right and go through the big oak double-door.
• Go right and walk through the door. This is the library.
• Get two books. One is a green book on the left and the other is on a stand in the middle.
• Next to the book in the middle is a shelf. Look for the plate that says McM and click on the brick behind it to open a secret staircase.
• Go downstairs and get the moldy cheese. Then go to the handle on the wall and flip it to open a secret grate in the cell with the robot. If you click on the robot he says something with all 1s and 0s.
• Go back upstairs to the library. The librarian is pretty angry with you and he brought some friends. Run out of the library.
• Go to the small door on the left and you will be in a bedroom with a girl in it. Use the moldy cheese in your backpack. There is a robotic mouse here and he will try to get the cheese and you will trap him.
• Go to the right and there is a letter with a secret message on the chest next to the bed.
• Leave this room and go up the staircase and then go inside the door at the top. The Queen and the King are inside this room and they are very sad because the princess has been kidnapped. Talk to the Queen and she will tell you about the three knights that were sent to rescue the princess. She will also give you the coordinates where the knights went.
• Go back outside the castle and go right. Keep going right until you reach a new area.
• Speak with the guy wearing a hood and he gives you a Bag of Manure. Now jump over the two hay bales and run up to the door at the Mille. Go inside and then walk left. Jump up on the hay bales and then go to the top, jumping up on the cogs and gears of the mill. Go right until you see a piece of rope hanging. Jump on it and then slide down.
• You are now on a platform with a girl. Talk to her and she will ask to trade secrets. She will take the secret message you found and then give you a piece of paper with three symbols on it. Jump down and go outside.
• Go to the right and you will see a big wheel in the mud. Get the coil of rope on top of that wheel. Now go to the left and stand under the sign for the mill. Jump up on the sighn and then get on the windmill blades to make them turn. Keep jumping on them to make them turn until the little bubble on top of the windmill roof is open. Then go inside the roof.
• There is an old hovercraft here but it is out of power. Use the bag of manure that the hooded guy gave you and the hovercraft will fly out of the attic. Go outside and jump down to the ground.
• You don’t need the hovercraft yet, so go back to the left and return to the castle.
• Stand in front of the large door to the castle and jump up on the windows. Keep going up until you get to a big platform with a large wooden bow and arrow. Use the coil of rope in your inventory to attach the rope to the arrow. Then point the arrow up and to the left and fire it. The arrow should stick int the door of the tower on the left. If you miss, try again. Then jump up on the rope and walk across it to get to the tower.
• Go to the left and get the paper that is sticking out of the chest. Go back outside the tower and go left to return to the fountain from the first area when you arrived.
• Walk to the middle of the fountain and click on the sign that has the space symbols. Choose the symbols in the correct order: moon, planet with rings, 5-pointed star. Then click on the huge sun that is in the middle of the sign. A secret door will open. Go inside.
• Talk to the guy on the right. He is the one with the funny teeth and acne. He will give you a key. Jump up onto the rope and leave the secret place.
• Walk left to the museum and enter it. Go up to the top floor and then click underneath the bed. You will see a missing page from Mordred’s Journal.
• Leave the museum and go back to the manure guy. Next to him you will see two bales of hay that you had to jump over before. Push them all the way to the right then jump on top and stand in the middle of them. You will fall down. Then push the left one all the way to the left and you should reveal a secret door in the ground.
• Use the small key in your backpack to open the secret door and then go down inside.
• Slide down the rope and then go up to the owl. He will fly outside. Follow him out. Then use the robot mouse in your backpack and the owl will catch it. The owl (his name is Merlin, btw) is now your friend. Click on the owl to tell it where to go.
• Go back down the trop door and then go left. Get the book on the chair. It is Mordred’s Journal. Go all the way to the left and keep pushing against the wall. It will break and then you can go through. There is a small hole. Climb inside it and you will be in the cell with the robot. He blows up and a fuel rod will fly through the bars and land on the floor outside the cell. Click on Merlin the owl and have him pick up the fuel rod and then bring it back to you.
• Go back through the hole and exit the secret room. Go to the right until you get to the hovercraft that you found in the mill. Jump on and go right. You will come to a broken spacecraft named Excalibur. Click on the spacecraft to get the control panel. Drag the fuel rod in the bottom corner to the other corner. Then enter the coordinates of 56-52 to get to the moon that you found about earlier. Press the red launch button to head into space!

Astro-Knights is a really long island and the walkthrough goes on for a bit. It is kind of too long to post the whole thing here in this Hub, so you have two choices. You can visit my blog for the whole walkthrough here:

Poptropica Astro-Knights

Or you can watch the videos I made below of the walkthrough. It has four parts because it is really long and YouTube only lets the videos be 10 minutes each. I hope you like it!