The book is The Dirty Work Deep Waters, Part 11. it is a short story of dirty work. It was nearly high-water, and the night-watchman, who had stepped aboard a lighter lying alongside the wharf to smoke a pipe, sat with half-closed eyes enjoying the summer evening. The bustle of the day was over, the wharves were deserted, and hardly a craft moved on the river. Perfumed clouds of shag, hovering for a time over the lighter, floated lazily towards the Surrey shore.
