start of the book, Ashton introduces the River Fleet and emphasizes its historical importance, despite its current state as a neglected ditch largely forgotten by time. He illustrates the river’s journey and its transformation, recalling its vibrant past when it was navigable and an essential water source for Londoners. The opening chapters delve into the river’s etymology, its once-bustling course, and the various wells and baths that lined its banks, while also hinting at the detrimental effects of urban development and pollution over time. Through his thorough research, Ashton sets the stage for a deeper exploration of the river's role across different facets of life in London. (This is an automatically generated summary.)