Sale, Richard "Cape Spectre"

World War 2 serial dating to the waning days of U.S. neutrality. Set in the Florida Keys, where a German agent has been using the wireless from an abandoned lighthouse to guide a Nazi sea raider to British shipping in the Caribbean. Sale’s hero is a U.S. Lighthouse Service official who ultimately routs the Nazis. This being a pulp serial, a beautiful young girl is involved in the proceedings, too.