Dear friend,
I met a young Irishman at the Old Harbour bar, he showed me some old documents.
He told me that in Ireland, more than 150 years ago, a pirate woman unleashed a reign of terror, at sea as on land, where she owned many castles. Sailors feared her, and passing people hastened to cross her territory.
At the time, a copyist monk was commissioned by his congregation to ship a number of valuable works there, presumably for an important religious festival. He would then have seen the pirate on his way, and before she arrived, would have entrusted a young monk with the task of sheltering the works. Since then, we have lost all trace of this transport.
The one I met at the port found these documents by chance, between the stones of a fence wall, before coming to the West Indies. He thinks that indicates the place. If you help him decipher this, he will be generous.
Your old friend, Ben Gunn.