Old Age and Treachery

Look, I ain't got reason to trust you, but there's a task I can't give to my crew. I need you to search the wreck of our old ship, the Mist-Hopper, and bring back the charter. It'd be sealed up in a silver tube, in a footlocker. It's sort of, uh... incriminating. I can't risk any of the crew finding it if they decide to visit the ol' girl. She's resting on the Shelf of Mazu, to the west. I'd suggest riding a rip current out there, if you got the stomach. They're all over the shelf.