The plan was easy to pull off. First the crew members of your ship, investigated, by listening to the conversation with the Captain's brother explaining that the naval ball was happening on his Frigate with a bunch of fancy people. Of course, what the crew swiped from his desk was something you both needed to get on the ship.
The spy you sent came back, and revealed that she got an invitation, and a love letter he was sending. "A love letter," Scarlett says. "Me darling older brother is expecting someone." "Who is wanting to go out with your brother, Captain?" You ask. "Who else," Scarlett answers. "Me brother had a strong affection with a lass in sailor school named Eliza Reed, and you know what?" "What?" You ask. "You both have the same hair color," Scarlett answers. "You'll be the perfect substitute to distract me brother."
"I don't even have the right clothing for the Naval Ball," You say. "Well, there's only one thing to do. Use the doubloons to find you a fancy dress, and then doll you up for the ball," Scarlett explains. "The crew members will sneak in on the ship, as you distract Charles with you charm, and then you put the amulet around his neck." "Aye aye," You say.