X Marks the Spot

From publisher blurb: After seizing a treasure map from a hoard, you obtain a ship and head to a Stickpin Island. The map doesn't divulge the treasure but shows an "X" on the island. Much to your dismay, the island turns out to be in the shape of an "X". Aarrrg! But hey, every island has something interesting right? This adventure setting was designed for both 5th Edition rules for the Filbar Campaign for four, fourth level adventurers and DM.