Synopsis
Superman investigates a possible conspiracy behind a mine collapse that may be deeper than the mine itself. This is a Superman-only issue.
Written By: Jerry Siegel
Russell Cole
Gardner Fox
Dick Lawlor Pencils: Homer Fleming
Fred Guardineer
Russell Cole
Joe Shuster
Sven Elven
Will Ely
Bernard Baily
Vin Sullivan Inks: Homer Fleming
Fred Guardineer
Russell Cole
Joe Shuster
Sven Elven
Will Ely
Bernard Baily
Vin Sullivan Cover By: Lee O'Mealia
