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Free Alternative History eBooks
Explore historical speculative writings, unusual cosmologies, hidden-world stories, and polar journeys. Inclusion preserves the source material and does not endorse its claims.
128 books · Page 6 of 6
Mound-Builders
Smyth examines the earthworks and burial mounds of North America, describing their construction, contents, and possible origins. The account considers what these remains suggest about the people who built and used them.
Tom Swift in the Land of Wonders; Or, The Underground Search for the Idol of Gold
Tom Swift joins an expedition searching for a lost city in Central America and an idol said to be made of gold. The party follows clues through unfamiliar country and underground passages while rival interests threaten the search.
Tom Swift and His Big Tunnel; Or, The Hidden City of the Andes
Tom Swift takes on a difficult tunneling project in the Andes, where engineering obstacles are joined by signs of a hidden city. His machinery and the expedition’s discoveries draw attention from people with competing plans.
Tom Swift in the City of Gold; Or, Marvelous Adventures Underground
A report of a city of gold sends Tom Swift and his companions toward an unfamiliar region of Mexico. Their search brings hidden routes, rival seekers, and the possibility of finding a remarkable settlement.
The Origin of the Mound Builders
Coffin investigates the origins of the mound-building peoples of North America. The book brings together accounts of earthworks, archaeological finds, language, and traditions in a search for connections between ancient populations.
At the Earth's Core
David Innes and Abner Perry travel below the Earth’s surface in an experimental machine and reach Pellucidar. Their exploration brings unfamiliar creatures, hidden societies and a struggle for freedom.
The Great White Queen: A Tale of Treasure and Treason
Two companions venture into an unknown African kingdom in search of a great treasure. Le Queux follows their journey through a concealed civilization, rival allegiances and a struggle for power.
Geo-Heliocentric Controversies: The Jesuits, Tycho Brahe, and the Confessionalisation of Science in Seventeenth-Century Lisbon
A study of debates over Tycho Brahe’s astronomical models among seventeenth-century Jesuit mathematicians. It follows the circulation of competing cosmologies and the relationship between scientific argument, teaching and confessional institutions.