Engineer Dr. Patrick Hook worked in the motor-racing and automotive industry before gaining a PhD within the Exeter University Auxetic Materials Group. He has written books on such diverse subjects as seashells, digital photography and Harley Davidsons. A full-time author by day, by night he helps local farmers manage predator numbers – specializing in shooting foxes. His Swiss Army Knife has proved invaluable in the field on many occasions. He, his wife, and various dogs live in an old farmhouse in the southwest of England.