
A daring rescue team has landed in Mercury’s narrow twilight zone, a precarious strip caught between the planet’s blistering day side and its frozen night side. With no protective suits and only a fragile craft to shelter them, the expedition must navigate a hostile world where breathable air is a rare blessing. Their goal is to locate the missing explorer Kalinoff, whose strange discoveries could change humanity’s understanding of the solar system.
Tensions flare as the rugged scout McCracken, convinced of his own superiority, impulsively fires at a native Mercurian, sparking a clash of cultures that threatens the mission’s fragile peace. Captain Lamoureux struggles to keep order while his second‑in‑command Carvalho warns of the consequences of antagonizing an intelligent alien race. As the crew debates trust, survival, and the ethics of their quest, the thin line between curiosity and danger becomes ever more apparent, setting the stage for a suspenseful race against time on a planet that tolerates no mistakes.
Language
en
Duration
~58 minutes (55K characters)
Publisher of text edition
Project Gutenberg
Credits
Produced by Greg Weeks, Mary Meehan and the Online Distributed Proofreading Team at http://www.pgdp.net
Release date
2016-01-09
Rights
Public domain in the USA.

1906–1980
A scientist by training and a storyteller by instinct, this mid-20th-century writer moved easily between science fiction magazines, comic books, and popular science. His work blended brisk adventure with a real curiosity about science, helping him build a career that stretched across several corners of American pulp culture.
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