With Von Stalhein and his confederates in hiding, Biggles knows that he must expect constant interference in his search for the missing papers. This makes him doubly determined to find them quickly! A thorough search of Rum Keg Haven produces no clues whatsoever, although Ginger is curious about a large bird's egg he sees on the study mantelpiece. The flyers are despondent and are about to return to Kingston, when a horrible leering face appears through the glass doors!