
The story opens on a bustling Omaha depot, where an emigrant train is set to thunder westward on the Union Pacific. Two shadowy figures linger on the platform, their conversation hushed but urgent, hinting at a scheme that could endanger the whole caravan. Their contrasting appearances—one a steel‑gray‑eyed veteran, the other a lanky, dark‑haired conspirator—add an unsettling edge to the scene.
Into this tension rides Rainbolt, the daring ranger whose reputation for swift justice precedes him. As rumors of a strange “aerial demon” haunting the nearby mountain begin to surface, Rainbolt finds himself drawn into a race against time to protect the passengers and uncover the villains’ true purpose. The early chapters blend classic frontier grit with a touch of the uncanny, promising an adventure where courage meets mystery on the high plains.
Language
en
Duration
~3 hours (193K characters)
Publisher of text edition
Project Gutenberg
Credits
Produced by Demian Katz, Craig Kirkwood, and the Online Distributed Proofreading Team at http://www.pgdp.net (Northern Illinois University Digital Library at http://digital.lib.niu.edu/)
Release date
2019-07-03
Rights
Public domain in the USA.

1845–1921
A prolific writer of frontier adventure stories, this Iowa author helped shape the fast-paced world of the dime novel. His tales of rangers, scouts, and outlaws carried the drama of the American West to a wide popular audience.
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