"When I saw the box in the treasure chest I was confused for a moment ... and I put it in amongst the pirate treasure they would win when solving the final puzzle." Per the outlet, Samboni ...

the world's only pirate treasure chest, and one of two surviving 17th-century Jolly Roger flags (that familiar black flag featuring a skull and crossbones). At the center of the museum ...

You'll know the treasure chest from the weird purple swords logo above it, and by opening this chest, you'll acquire the crafting recipe for the Corsair's Compass, and begin the Pirate King's ...