Roughly 100 feet up the tunnel the party discovers the perforated, skeletonized bodies of two kobolds surrounded by puddles of black goo. Three crude stools shaped from mushroom stalks sit near the edge of a ledge overlooking the lake the party poled across just a short while ago. Crossbows and bolts lay scattered where they fell in the snipers death throes. The eastern end of the ledge area has a neat stack of many tens of bolts, and two crossbows, also neatly set aside. The only exits are off the ledge into the lake, and back the way the group came in.