To start the quest speak with Redbeard Frank who can be found in the bar located north east of Port Sarim, when speaking to him players should tell him they are Looking for treasure. After speaking to him he will ask if you can get him some rum from Karamja, so head over to the docks and find either Captain Tobias, Seaman Lorris or Seaman Thresnor they will allow you to sail to Karamja for 30gp.
Head over to the pub and purchase some rum. After this, head back to the boat, but do not go back to Port Sarim. Talk to the Customs Officer and ask them "Can I journey on this ship?". The Officer will reply with "You may only after a personal search.". Players are then able to ask why and have the rules regarding karamja rum explained to them. If you then allow them to search you, they will take your rum away because you can't bring the rum back to the main lands.
Note: If you teleport with your rum, the bottle will be destroyed.
Talk to Luthas and ask him for a job. He will ask you to pick bananas for him and put them into the crate. First go outside and put the rum into the crate, then go to the banana field right next to his hut and collect ten bananas. After picking the bananas, add them to the crate and speak with Luthas again.
Head back to Port Sarim and go to Wydin's Store (make sure to wear a white apron). When you are in Wydin's store, ask him for a job. Once you're employed open the door on the bottom floor and search the crates. Once you've found the crate with the rum, leave the store. Go back to Frank and he will take the rum and tell you about the treasure. He will also give you a key and tell you to go unlock a chest at the Blue Moon Inn at Varrock.
Teleport to Varrock and go upstairs in the Blue Moon Inn. Unlock the chest. You will get a pirate's message that reads: "Visit the city of the white knights. In the park, Saradomin points to the X which marks the spot." Make your way to Falador park.
Make sure you have a spade on you as the one in your toolbelt will not work. Dig in the middle of the X and a gardener should appear and attack you. If you don't want to attack him, go outside of the park then go back and dig again. Once you've dug up the chest your quest will be completed.
Congratulations! Quest Complete!
Guide Made by: Arbr
Corrections submitted by: DaDa, Yolk, Ashwin, Simon, Arbr, Panda, Rebecca, Majinvegito3, Tiny, Leader Rob