In the summer of 1981, Pat Delgado drew attention to the existence of some mysterious circular depressions in the fields at Cheesefoot Head, Hampshire. Other similar phenomena in southern Britain have also been found. Theories about their origin abound and this book discusses them.

In the summer of 1981, Pat Delgado drew attention to the existence of some mysterious circular depressions in the fields at Cheesefoot Head, Hampshire. Other similar phenomena in southern Britain have also been found. Theories about their origin abound and this book discusses them.