At the Earth's Core is a 1914 fantasy novel by Edgar Rice Burroughs, the first in his series about the fictional "hollow earth" land of Pellucidar. It first appeared as a four-part serial in All-Story Weekly from April 4–25, 1914. It was first published in book form in hardcover by A. C. McClurg in July, 1922.
Short summary:
The author relates how, traveling in the Sahara desert, he has encountered a remarkable vehicle and its pilot, David Innes, a man with a remarkable story to tell.

A Princess of Mars (1917) is a science fantasy novel by Edgar Rice Burroughs, the first of his Barsoom series. Full of swordplay and daring feats, the novel is considered a classic example of 20th century pulp fiction. It is also a seminal instance of the planetary romance, a sub-genre of science fantasy that became highly popular in the decades following its publication. Its early chapters also contain elements of the Western. The story is set on Mars, imagined as a dying planet with a harsh desert environment. This vision of Mars was based on the work of the astronomer Percival Lowell, whose ideas were widely popularized in the late 19th and early 20th centuries.

In his final years he aspired to publish his fringe beliefs. Here is the cover of his loon-tastic 84-page “handbook of the Millennium” The White Spark (1920)…

Pellucidar is a fictional Hollow Earth milieu invented by Tarzan creator Edgar Rice Burroughs for a series of action adventure stories. In a notable crossover event between Burroughs' series, there is a Tarzan story in which the Ape Man travels into Pellucidar.
The stories initially involve the adventures of mining heir David Innes and his inventor friend Abner Perry after they use an "iron mole" to burrow 500 miles into the Earth's crust. Later protagonists include indigenous cave man Tanar and additional visitors from the surface world, notably Tarzan, Jason Gridley, and Frederich Wilhelm Eric von Mendeldorf und von Horst.

Peter Cotterell’s Treasure (1922) This book, re-edited and illustrated by e-kitap projesi and published again in ebook format. In this book, telling that Cooterell’s adventures, and so was a treasure adventure, Naturally then Ben felt that this puzzle of Peter Cotterell’s treasure was right in his line, and the finding of the half-sheet of parchment whetted his appetite to discover more. He walked about the room, whittling shavings right and left, he sat down and kept on whittling, he stood up again, and since by now the willow-stick had been whittled down to almost nothing, he threw what was left in the fireplace. That done, he went to a bookcase and took down from the shelf on top the old notebook that Tuckerman had found in his uncle’s bedroom. He shook his head in deep thought. “I don’t understand why that piece of parchment wasn’t discovered before. Probably it didn’t tell them any more than it’s told us so far.”

The story begins on Epiphany (6 January), 1482, the day of the Feast of Fools in Paris, France. Quasimodo, a deformed hunchback who is the bell-ringer of Notre Dame, is introduced by his crowning as the Pope of Fools.

Victor Hugo says, that "Africa will be the continent of the twentieth century." Already the nations are struggling to possess it. Stanley's explorations proved the majesty and efficacy of equipment and force amid these dusky peoples and through the awful mazes of the unknown. Empires watched with eager eye the progress of his last daring journey. Science and civilization stood ready to welcome its results. He comes to light again, having escaped ambush, flood, the wild beast and disease, and his revelations set the world aglow. He is greeted by kings, hailed by savants, and looked to by the colonizing nations as the future pioneer of political power and commercial enterprise in their behalf, as he has been the most redoubtable leader of adventure in the past.

Then came a glimmer of daylight that grew and grew, and presently ended in another arch that looked out over a scene so like a picture out of a book about Italy that everyone's breath was taken away, and they simply walked forward silent and staring. A short avenue of cypresses led, widening as it went, to a marble terrace that lay broad and white in the sunlight.

Obscure Destinies is a collection of three short stories by Willa Cather, published in 1932. Each story deals with the death of a central character .When Doctor Burleigh told neighbour Rosicky he had a bad heart, Rosicky protested.

This Excellent Collection brings together Mark Twain's longer, major books and a fine selection of shorter pieces and Science-Fiction Books.