From the introduction:
The [player characters] are on a mission to bring back a rather strange looking device to a gnome called Bigbog, an inventor of some renown and a resident of Procampur on the coast of the Sea of Fallen Stars. The device is a crystal with several metal tubes protruding from it. The wizard who constructed it for the gnome was very vague about its purpose other than it was a form of protection. Bigbog has promised 100gp each to the PCs on safe delivery of the part.
User summary:
A difficult adventure for mid-level characters. The scenario is distributed as a ZIP archive containing:
Gone Fishing (10-page RTF file; scenario)
Major NPCs (2-page RTF file; detailed non-player characters)
The Sub (3-page RTF file; detailed magic item)
Eight GIF files (maps and schematics)