Publisher's blurb: Rumors of a rampaging sea monster have ground shipping traffic to a halt in the harbor. The players discover that the Jade Lion has gone missing near Skyhorn Lighthouse and learn they must brave the open seas and cutthroat enemies in order to save the crew from a murky fate! The Secrets of Skyhorn Lighthouse is an adventure for 5th-level characters. User summary: Distributed in several files, including PDF and MOD, as well as ZIP archives containing cards, maps, etc.