National Comics #14

In "The Great Darkness," a mysterious plague blinds everyone at a navy shipyard, plunging the base into chaos. Uncle Sam, armed with his audio phone that can replay past conversations, uncovers the truth: the Black Legion, his old enemies, are behind the attack. With the help of his wits and the device, he races to expose the villains and restore sight to the afflicted. Art by Chuck Cuidera, with a striking cover by Lou Fine and Reed Crandall, this 1941 issue delivers a gripping wartime mystery.