Cover: Martin Nodell & Irwin Hasen

All-American Comics #37

Apr 1942 · DC · 0.10 USD

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“The Sinister Plot of Professor Caspar”

In "The Sinister Plot of Professor Caspar," Al takes a car out for a near-fatal test drive, sparking a high-stakes chase that leads the Atom to expose a network of crooked car dealers. Written by Bill O'Connor and illustrated by Ben Flinton with inks by Leonard Sansone, this 1942 adventure blends pulp suspense with early superhero sleuthing. The cover, a dynamic collaboration by Martin Nodell and Irwin Hasen, captures the moment of peril with sharp, expressive detail.

writer Bill O'Connor · artist Ben Flinton · inker Leonard Sansone · cover Martin Nodell, Irwin Hasen

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Full credits

writer Bill O'Connor

artist Ben Flinton

inker Leonard Sansone

cover pencils, inks Martin Nodell

cover pencils, inks Irwin Hasen

Full plot ⚠ may contain spoilers

▸ Reveal full plot — may contain spoilers

Al takes a car out for a near-fatal test drive, forcing the Atom to round up the crooked car dealers and get them to confess to selling dangerous vehicles to unsuspecting buyers.

Plot details indexed by the Grand Comics Database (CC BY-SA).