“Professor Emeritus Charles Sheppard OBE’s latest (and final) book on the coral reefs and biogeography of the Chagos Islands is a highly engaging and accessible narrative, but ultimately a plea to act on climate change and human impacts on coral within a decade—or there won’t be much left. Charles vividly paints the Chagos archipelago as a unique and broadly instructive microcosm of the world’s conservation and governance conundrums, and an ecological reference point. There are few branches of science whose practitioners hope that the outcomes of their lifetime’s research might be wrong or become irrelevant, but Charles reminds us, ‘that is the case both for scientists researching climate change and its effects on natural systems, not only coral reefs’. As for Chagos and its reefs? We must retain hope, he said, or we are lost. ‘After all, we know we will be dead one day but would still see a doctor tomorrow if needed. Why?’. Sadly, the first print of this book arrived at his door just days after his sudden death in 2024 not long after ‘retirement’. It is a fitting final publication.”Matthew Bunce FMBA, in The Marine Biologist, Issue 32, Oct 2024