E.W. (Edmund Wallace) Hildick was a British children's book author. He was born in Bradford, England in 1925. After two years service in the Royal Air Force he became a secondary school teacher, then a writer, later moving to the United States to become editor of a literary magazine. He died in London in 2001.
The McQurk Detective Organization accepts a case to clear The Four Flying Fingers of being accused of vandalism. But as the case moves forward McQurk and his detectives discover more than just a rash of rock throwing and broken windows. It's up to math and science, and deduction to break this mystery, and bring the true culprits to the surface.