This is for a "multi system fantasy RPG adventure", which apparently includes OSRIC and two other systems
Swamp raiders from the jungle province have been raiding the small
border towns of Wynhelm for years, with the village of Thuil being a
frequent target. Raiders no longer attempt to invade Wynhelm over the
many small bridges spanning the Black River, but have taken to rafting
large groups of warriors through the calmer sections of the water.
Raiding parties of a dozen or so desperate bandits have turned in to
organized troops of lizardmen and red cloaked priests. The snake god
Sshanasa is surely behind these recent attacks!
$5 gets you a 20 page PDF (with really nice maps) or $25 for a printed copy.