The Pearl of Madness

From publisher blurb: When the Isle of Jade begins to rumble, the islanders cancel the player's expedition to the inland. However, it is still a beautiful day for a pearl dive. Can the players find fortune in the tranquil waters of a hidden cove, or does something more sinister lurk there? This mini-adventure sets up the events of Folio #14, and is for characters levels 1-3 in both 1E and 5E formats.