“Enemy of Earth”
Superman is carrying a virus that turns the people of Earth into monsters.
See fair market value at every grade, raw and CGC, with value history and the grading break-even.
Already a member?
Key issues are always free. See every key issue.
Superman #237 (1939) is issue #237 of DC's Superman (1939–1986), with a cover date of May 1971. Written by Denny O'Neil and drawn by Curt Swan.
Credits, characters and story details from the Grand Comics Database, CC BY-SA 4.0.