This book makes a wide-ranging and compelling contribution to the transnational turn in spa and comparative literature. It also spans eras and cultures, guiding readers from the golden era of spas in the 19th century through Cold War Communist waters, through to the present. The topics tackled are varied and captivating: the founding of spas, sociability, liaisons, social control, surveillance, poetry, avant-garde movements, nostalgia, horror, to name only a few. The cast of characters is truly spell-binding: Karl Marx, Guy de Maupassant, Thomas Mann, Stefan Zweig, to name only a few.