"In the years between 1977 & 1990, a group of hired assassins known as the Clinic tracked down and killed four British soldiers, one at a time. Two of the victims were ex-SAS. All four had fought in the Arabian desert.

The Feather Men were recruited to hunt the Clinic. Without their intervention more soldiers would have died. At the end of their operation they asked Ranulph Fiennes, one of the world's best-known explorers and himself a former SAS officier, to tell their extraordinary story..."

After reading this story I can see why it was a No 1 bestseller.