
For two centuries the United States has lain hidden behind an impenetrable wall of atomic fury, a barrier that has turned the once‑great nation into a mystery for the rest of the world. Emmett O’Hara, a restless air‑sentinel of the International Patrol, is obsessed with the secret that lies beyond the “Atom Curtain.” On a routine mission in the year 2230 he accomplishes the impossible—piercing the lethal barrier and emerging into a landscape that defies every expectation.
What O’Hara discovers is a stark, isolated America reshaped by radiation, survival, and a society that has evolved in total secrecy. As he navigates this strange new frontier, he must contend with hidden agendas, a shadowy World Council, and the lingering threat of the very force that once sealed the continent off. The story blends pulse‑pounding adventure with thought‑provoking questions about power, fear, and what humanity might become when cut off from the rest of the world.
Language
en
Duration
~5 hours (315K characters)
Publisher of text edition
Project Gutenberg
Original publisher
New York, NY: Ace Books, Inc., 1956.
Credits
Greg Weeks, Mary Meehan and the Online Distributed Proofreading Team at http://www.pgdp.net
Release date
2024-03-10
Rights
Public domain in the USA.

1906–1992
A longtime Los Angeles Times editor who also wrote science fiction, he brought a newspaperman’s clarity to stories about strange futures. Best known in genre circles for The Atom Curtain, he balanced a major journalism career with imaginative fiction.
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