Uncharted island map

Uncharted island map is an item that can be randomly obtained through gameplay that allows a free passage to an Uncharted Isle. It has a read option which prompts a dialogue pointing the player to Quartermaster Gully. When the map is taken to him, he offers a voyage to an Uncharted Isle with no supplies cost.

Trivia

 * Reading the map prompts the player to say If I take this to my quartemaster in the Wushanko Isles, I can visit this island. When Quartermaster Gully is talked to while the map is in inventory, he says I see ye have a map to a remote uncharted island there, cap'n - would you like to sail there? It won't even cost us any supplies!