Could you tell a wyvern from a dragon, outsmart a kappa, capture a unicorn or survive an encounter with a giant squid? You could with the help of the Cryptozoological Society of London and its top-secret files. For over 150 years, the Society has conducted detailed investigations into all manner of creatures - the majority of which mainstream zoologists claim not to exist. Decades of work have gone into building up an impressive archive of written and physical evidence from the far-flung corners of the world. Now made public for the first time, this incredible compendium will convince even the most skeptical reader of the existence of dozens of creatures with amazing, and sometimes terrifying, abilities. On-site documentation in the form of researchers' field notes and supporting physical evidence, historical documents and photographs, scientific analyses, detailed maps of important encounters, artifacts, newspaper and magazine articles, and myriad first-hand reports of personal sightings all contain fascinating and little-known information on the habits of these incredible beings. Their evolution and biology, life cycle and habitats, and hunting and mating activities - the breadth of evidence will astonish, captivate and intrigue.