When the “Big Boss” at Secret Service Headquarters in Washington sent Jack Ralston and his pal, Gabe Perkiser, to Florida with orders to comb the entire Gulf Coast from the Ten Thousand Islands as far north as Pensacola and break up the defiant league of smugglers, great and small, that had for so long been playing a game of hide-and-seek with the Coast Guard revenue officers, the task thus assigned was particularly to the liking of those two bold and dependable sky detectives.