Two companions on a river voyage enter an expansive willow marsh where landscape and water are portrayed as alive and constantly shifting. Lyrical, sensory passages about wind, sand, and currents alternate with a mounting sense of unease as small, inexplicable disturbances gather around their camp. The mood tightens into an impression of an impersonal, possibly hostile intelligence manifesting through the river, trees, and weather. The narrative moves from travelogue to concentrated psychological and supernatural suspense, building toward an ambiguous, unsettling culmination that blurs the boundary between natural scenery and otherworldly presence.