Lady Epero's Map Fragment

This piece of tattered parchment shows the familiar waters and landmasses of the Deadfire Archipelago, but without the other pieces it's impossible to tell where it points or how to get there.

A note is scribbled in the margins:

"Epero,

As my parting wish I ask that you give the others at least a fortnight before you send your dogs after them. I know you're in need of coin, but allow them the courtesy of a head start. I buried that treasure for us to share.

Captain Henqua"