Action Comics #21 (1940)

In Action Comics #21, Superman takes on a new foe with the power to rule the world, the Ultra Humanite. But this isn't just a land-based battle, as the Man of Steel takes to the high seas to save the day. Along with this thrilling tale, the issue features several other untitled stories featuring characters such as Pep Morgan, Chuck Dawson, Clip Carson, and Tex Thomson. There's also a captivating text story called "A Blaze of Glory" and an adventure with the Three Aces. Plus, don't miss "The Deaths on the Moor," featuring the magical Zatara. At Comics Into Cash, we pride ourselves on our extensive knowledge of comic book history, and this classic issue is just one example of the incredible stories waiting to be discovered in collections across the country.