Stories by Klaus Nordling and Bert Whitman. Art by Walter Frehm, Klaus Nordling, Martin Nodell and Bert Whitman. Cover by Chuck Cuidera. Vita-rays transform Michael Shelby into the hero known as the Green Mask. The Green Mask and Domino investigate a wave of payroll robberies in the city; Green Mask intervenes when the murder of a diplomat threatens to start a war; A story by Green Lantern creator Martin Nodell, featuring the last appearance of a mad scientist from space called Dr. Doom. The Payroll Pirates; The Factory Explosions; The Murder of Zarano; Smugglers of the Rio; Spark Stevens: The Radio-Controlled Blimp; Dr. Doom: The Paralyzing Poison; Navy Jones: Vendetta With U-204.