Here’s the complete step by step guide with helpful high quality pictures for Club Penguin Mission 1: “Case of the Missing Puffles”:
Step 1. Click on Aunt Arctic and ask her about what happened.
Step 2. Click on the map in upper left and go to the Ice Rink.
Step 3. Go at right and get the pictures with the green puffle from the ground.
Step 4. Then go back in Aunt Arctic’s Igloo and give the pictures to her.
Step 5. Click on the map again and go the Pet Shop.
Step 6. Go at left and click on the message on the wooden puffle house.
Step 7. Decode the message using the Secret Agent Code that you can access in lower right. The message will be like this “G has ****** *** pairs of socks. [Every time you start the mission the number of socks will change. So, you'll have to decode the message yourself.]
Step 8. Click on the map and go to the Sport Shop.
Step 9. Talk with Gary and ask him if he has any special items.
Step 10. Then he will ask how many pairs of socks he has and you’ll have to answer him.
Step 11. Drag and drop in the inventory the items he shows you.
Step 12. Then go the Iceberg and use the Life Preserver Shooter to help the penguins get out of there.
Step 13. After you save them click on the green penguin and he will tell you that he saw two puffles that flew away.
Step 14. Use the map and go to the Ski Hill.
Step 15. Help the crying penguin to repair his telescope using your wrench from the spy phone.
Step 16. Then look through the telescope and you’ll see the green puffle flying around the Tallest Mountain.
Step 17. Click on the map and go to the Tallest Mountain.
Step 18. Look up and use the Grappling Hook from Gary to climb the Mountain.
Step 19. After you climbed the Tallest Mountain you’ll see Aunt Arctic’s puffles.
Step 20. Take the puffles back to Aunt Arctic and tell her what happened.
Congratulations, you have finished Mission 1: “Case of the Missing Puffles”. Get your medal and the letter from Aunt Arctic!