Devils of the Deep, No. 123 and the Headless Men, No. 124

Devils of the Deep, No. 123 and the Headless Men, No. 124 by Robeson, Kenneth. paperback edition. ISBN: 9780553245516.

Devils of the Deep A mysterious "sea monster" is sighted by fishermen in the Gulf of Mexico. Then a pirated submarine, using a powerful secret weapon, begins to terrorize shipping along the entire Atlantic seaboard. Hundreds die as warships of all nations join together to find and destroy the deadly menace. The chief suspects: Doc Savage and his loyal crew! Authored by Harold A. Davis. The Headless Men A mad scientist has invented a way to decapitate people and let them live as his headless slaves. The Man of Bronze and his crew pursue this deadly genius to Central America, where they are all trapped and captured. Only Doc Savage can prevent the headless horde from taking over the world - but he is strapped to a sacrificial altar and is scheduled to lose his head at midnight!