"A woman in a red raincoat killed Linton Barclay." Paradise Island, the brightest spot of all playgrounds edging the Gulf of Mexico, caters gladly to those who can afford to pay well for their entertainment. Twelve miles from the mainland, it has, under the suave management of Brett Allison, come to be known for sports, gaming tables, and the Peacock Club. For some time Federal authorities have suspected a connection between the Island and the increased activities in the drug traffic along the coast, but when Major Jack Raymond, stocky as the cigars he smokes, and Andrew Dillingham, scion of one of the south's oldest families, are sent to investigate, they encounter in the