Action Comics #173
☆ Be the first to review + Add to your collection — Join freeIn "Superman's Invulnerable Foe!", the Man of Steel faces his most cunning challenge yet when the criminal genius "Dragon" Lang unleashes Ajax, a robot built to mirror Superman’s powers, and sets a bomb to detonate in Smallville within ten days. With time running out and no known weakness to exploit, Superman must outthink a foe who’s not just his equal in strength—but his perfect match.
In the dusty depths of a Martian excavation, Dr. Lewes stumbles upon a hidden cavern brimming with ancient spaceships and silent, working robots. As he and the Planeteers watch a haunting recording, they learn of a long-banished Martian civilization forced beneath the surface four million years ago—leaving behind a mystery that still hums with forgotten power.
ComicBooks.com Value
Show all 14 grades ▾
More listings for this title
Sell my copy
Have this issue — or a whole collection? Get a fair offer from us, skip the marketplace fees and the hassle.
We Buy Collections ▸Full credits
Reprints
Reprinted in Batman #35 (1953), Supermán #20 (1953), World's Finest Comics #92 (1958), Superman's Girl Friend, Lois Lane #38 (1963), Superman in Action Comics #1 (1993), Stålmannen #4/1954
Key issues in Action Comics
Reviews
Reader reviews
No reader reviews yet.