Action Comics 1938 #552 Direct ed. - 8.0 - $6.00

Superman has been infected with microscopic spores by Vandal Savage, and Savage activates them, creating a dome of uncontrolled alien plant growth that will slowly take over Metropolis. Meanwhile, the Forgotten Heroes gather and swap stories of finding identical magical golden temples around the world.

• - Colors credit confirmed by Anthony Tollin.