My friend,
a pirate woman, friend of mine, told me that a little too curious fisherman had finally found her den. My friend and her crew ended up catching this reckless man ... they bought his silence.
Imagine that this fisher had followed my friend's ship during an expedition to steal salt; he had drawn each stage of the expedition on these documents which I am giving you.
I told my friend about you. Your treasure-hunting skills amused her greatly. She challenges you to decipher the documents of the fisherman, she will reward you with salt (you know its very great value!) If you overcome it. Maybe she'll give you one of her belongings if you're quick.
Accept this challenge, you will benefit from being in her good books, I assure you.
Ben Gunn.