The somewhat enigmatic title of this book, by one of Britain’s most distinguished scientists in collaboration with a highly respected natural history writer, belies the arresting nature of its content. Eighty years ago, Miriam Rothschild’s father, Charles Rothschild – said by some to have been the inventor of nature conservation in Britain – first proposed the establishment of a network of 280 national nature reserves throughout the country to preserve the cream of its wildlife habitats – a monumental task. In this book she and her co-author discuss the efforts that went into the selection of these reserves and compare the state then and now of 182 of the English sites and their wildlife – depressing reading in many cases.