The ground becomes wet and impossible to find firm footing. Scattered throughout the marsh are old peasant cottages, their walls covered with black mildew, their roofs mostly caved in. These decrepit dwellings seem to hunker down in the mire, as though they have long since given up on escaping the thick mud. Everywhere you look, black clouds of flies dart about, hungry for blood.

U1 middle of map. You approach this cluster of ruined cottages separated by low stone walls. Finally, firm footing.
(Perception or investigation to loot the cottages)

(looking at u3) to the west you see a strange treehouse.

(looking at u2) the remains of the burgomaster's mansion

(looking at u6) you see what looks like someone holding a lantern on the other side of the river.