Cover: Carmine Infantino & Robert Kanigher & Joe Kubert

Showcase #4

Sep 1956 · DC · 0.10 USD

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“Mystery of the Human Thunderbolt!”

★ 1st appearance — Barry Allen★ 1st appearance — The Flash★ 1st appearance — Flash★ 1st appearance — Iris West

In "Mystery of the Human Thunderbolt!", a lab accident fused lightning and chemicals, transforming Barry Allen into the fastest man alive—armed with a costume inspired by the Flash of the 1940s. Now, he must confront a new foe: the Turtle Man, known as "The Slowest Man Alive." Written by Robert Kanigher and illustrated by Carmine Infantino, with inks by Joe Kubert and lettering by Gaspar Saladino, this 1956 Showcase #4 features a cover by Infantino and Kubert.

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writer Robert Kanigher · artist Carmine Infantino · inker Joe Kubert · letterer Gaspar Saladino · cover Carmine Infantino, Robert Kanigher, Joe Kubert

More listings for this title

VF $2.99 Newsstand $5.09 VF $5.19 CGC 9.8 $99.99 CGC 9.8 · Signed $280.49 CGC $530 CGC $1925 CGC $2700

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Full credits

writer Robert Kanigher

artist Carmine Infantino

inker Joe Kubert

letterer Gaspar Saladino

cover pencils Carmine Infantino

cover pencils Robert Kanigher

cover inks Joe Kubert

Full plot ⚠ may contain spoilers

▸ Reveal full plot — may contain spoilers

By a freak accident involving lab chemicals and lightning, Barry Allen becomes the fastest man alive and originates a costume based on the comic adventures of the Flash from the 1940's. And it's a good thing too: for he must now face the Turtle Man, termed "The Slowest Man Alive".

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