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A Shadowline Saga: "Critical Mass" #4 cover
Cover: Kevin O'Neill

A Shadowline Saga: "Critical Mass" #4

Apr 1990 · Marvel · 4.95 USD; 6.25 CAD
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About this Collection

This is the fourth issue of the seven-part 'Critical Mass' storyline within Epic Comics' A Shadowline Saga. It continues the dark fantasy series set in the shared Shadowline universe, featuring the ongoing conflict between the forces of order and chaos. This installment advances the narrative toward the climactic events of the saga, written and illustrated by the original creative team behind the series.

In "Foreword," the fourth issue of A Shadowline Saga: Critical Mass, Ripley and Victor face a chilling realization: their attempt to expose the truth about Professor Clerk has put them in the crosshairs of a government conspiracy. With hitmen closing in, they turn to the mysterious Order and the enigmatic Doctor Zero for help, setting a dangerous course into deeper shadows. Written by D. G. Chichester and Margaret Clark, with striking art by Gray Morrow and vivid colors by Steve Buccellato, Christie Scheele, and Nel Yomtov, this 1990 thriller builds tension with a cover by Kevin O'Neill that captures its high-stakes urgency.

Contains 4 stories
Foreword
5 pp · Superhero
Adam NeushukJohn NighthunterPatty Richardson
Chapter seven: The Mouth of Truth
28 pp · Superhero
Brother AngusProfessor ClerkSheila WillisGramon

In "Chapter Seven: The Mouth of Truth," Brother Angus steps into the sacred armor, facing the monstrous Doctor Zero with a resolve forged in faith and fury. Meanwhile, Professor Clerk inches toward a terrifying goal—unifying the nation’s nuclear power plants into a single, unstoppable chain reaction.

Interlude
3 pp · Superhero
Donald GaffneyGeneral Retler

In "Interlude" from *A Shadowline Saga: Critical Mass* #4, General Retler finds himself uneasy as Professor Clerk's involvement in the theft of ultra-sensitive sensors from a decommissioned ABM facility raises troubling questions. The tension between duty and trust deepens as Retler begins to wonder just how far Clerk is willing to go—and what he might be hiding.

Fissionable Material
28 pp · Superhero
GordonVictorGeneral RetlerGramonLenoreRipley

In "Fissionable Material," Ripley and Victor uncover a dangerous secret tied to Professor Clerk—only to find the U.S. government is entangled in the cover-up. When assassins target them after a meeting with officials, they realize they can’t fight this alone and turn to the Order and Doctor Zero for help.

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Critical Mass- A Shadow-line Saga by Epic Comics- Book Four of Seven (Volume 1 Number 4)

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Full credits

artist, inker Gray Morrow
colorist Nel Yomtov
letterer Bill Oakley
letterer Brad Joyce
cover pencils, inks Kevin O'Neill

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