Have you seen one? Thousands of people already have! What are they? Where do they come from? And why? Over the past 30 years every county in Britain, from Caithness to Cornwall, has had recurrent sightings of big cats. Described as being like pumas or panthers, these anomalous big cat sightings are now running at an estimated 1,200 a year. Mystery Big Cats is the first serious and comprehensive book on the subject. This new edition, the first for nearly 20 years, brings this exciting book back up to date with recent developments. From the drama of eyewitnesses verbatim accounts to the intrigue of new insights into these strange and often terrifying experiences, Merrily Harpur gets to grips with what is now the commonest encounter with the unknown in Britain.