The Shadow becomes involved in a professor's plot to make imitation gold and coin counterfeit foreign currency.; Cappy gets the aid of Sir Gay, the Magician, in training for a boxing match with King Leo.; When his father is killed by a train while walking home from work, Harry Raymond must find a way to raise money to pay the mortgage due on his mother's house. Harry invents a new explosive, but foreign agents bribe the mortgage holder to delay Harry so they can steal the formula.; D'Artagnan, not yet a Musketeer, accompanies the Musketeers to the siege of La Rochelle. He finds himself under fire from assassins hired by Milady.; Bob, a former explorer, takes teen Jim Martin with him to excavate an Egyptian tomb in search of a magic scarab. Once obtained, Bob puts on a costume and becomes known as The Hooded Wasp, Martin becomes the Wasplet, and they fight evil around the world, including against his arch-enemy Razil, chief of a secret society that wants the scarab for themselves.; In the far future, Iron Munro and the Magyan space fleet use two moons of Magya as weapons to destroy the devil-planet Teef-El.; Nick Carter, chief of the counter-espionage department, must recover plans for a powerful new explosive that were stolen by a ring of three spies.; Frank and Barney try to recover stolen radium that was dumped into a muddy river. Frank invents a submarine called the "Marvel," which is loaded with various weapons.