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Action Comics #434 cover
Cover: Nick Cardy

Action Comics #434

Apr 1974 · DC · 0.20 USD
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In "The Krypton Connection!", Superman finds himself ensnared in a devious scheme when the Kryptonian scientists Dr. Xadu and Zeda lure Clark Kent into a dentist chair—only to reveal their return to Earth and their unsettling control over the Man of Steel. Written by Cary Bates and brought to life with Curt Swan’s iconic art and Vince Colletta’s crisp inks, this 1974 classic features a chilling twist on Superman’s vulnerability, all framed by Nick Cardy’s striking cover.

Contains 2 stories
The Krypton Connection!
13 pp · Superhero
SupermanDr. XaduZeda [Erndine Ze-Da]Steve LombardLois LaneJimmy OlsenDr. Hill

In "The Krypton Connection!" from Action Comics #434, Clark Kent finds himself unexpectedly cornered by the Kryptonians Dr. Xadu and Zeda, who lure him into a dentist chair with a chillingly familiar twist. As the duo reveals their return to Earth and their hold over Superman, the line between ally and adversary blurs in a story that redefines trust in the most unexpected place.

Zatanna's Double Identity!
7 pp · Superhero
Zatanna ZataraGreen Arrow [Oliver Queen]Black Canary [Dinah Lance]Eben Flow (Bank Robber)

When Zatanna’s magic misfires, she finds herself temporarily transformed into Black Canary—complete with her powers and persona—leaving Green Arrow to navigate a confusing situation as the real Black Canary grows suspicious of the imposter. The mix-up sets off a chain of misunderstandings that test trust and identity, all in a story that blends magic, mistaken identity, and superhero dynamics.

ComicBooks.com Value

Our Model is In Beta
Raw (Fine) $12
CGC 9.8 · 7 in census $554
CGC 9.6 · 16 in census $153
CGC 9.4 · 11 in census $127
CGC 9.2 · 5 in census $64
CGC 9.0 · 6 in census $64
CGC 8.5 · 2 in census $42*
Show all 16 grades
CGC 8.0 · 4 in census $39*
CGC 7.5 · 2 in census $34*
CGC 7.0 · 2 in census $33
CGC 6.5 · 2 in census $26*
CGC 6.0 none in existence
CGC 5.5 · 2 in census $20*
CGC 5.0 · 1 in census $20*
CGC 4.5 · 2 in census $20*
CGC 4.0 none in existence
CGC 3.5 · 1 in census $20*
* estimate — limited direct-sales data at this grade
Our model’s value — refined as new sales data arrives · CGC census counts shown where available

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Full credits

writer Cary Bates
artist Curt Swan
letterer Ben Oda
cover pencils, inks Nick Cardy

Reprints

Reprinted in Superman #21/1974 (1974), Supermann #1/1975 (1975), Batman Poche #7 (1977), Superman Poche #22 (1979), Gigant #4/1981 (1981), Superman Taschenbuch #42 (1982), Green Arrow / Black Canary: For Better or for Worse #[nn] (2007), سوبرمان [Subirman Kawmaks / Superman Comics] #539, Superman (4ª Série) #28

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