Enlightenment at the Dim Spire

From publisher blurb:

Trapped behind collapsed ceilings our heroes traverse cramped tunnels hoping to find a way out of the Ghost Dogs den. Emerging through a trap door our intrepid adventurers find themselves in the remains of a crumbling lighthouse, standing on a tall cliff, meekly shining a dim light into the rough sea. Perhaps within the crumbling remains lies Enlightenment at the Dim Spire! Each Sidetrek Adventure Weekly episode throws characters into an action-packed encounter designed to electrify your game. Drop any Sidetrek Adventure Weekly directly into your adventure as a stand-alone combat. Or, if you dare, link all 12 into one pulse-racing, white-knuckle sidetrek adventure series. Jump aboard Sidetrek Adventure Weekly tonight!