The Sword of Welleran and Other Stories by Lord Dunsany

The Sword of Welleran and Other Stories is the third book by Irish fantasy writer Lord Dunsany, considered a major influence on the work of J. R. R. Tolkien, H. P. Lovecraft, Ursula LeGuin and others. It was first published in hardcover by George Allen & Sons in October, 1908, and has been reprinted a number of times since. Issued by the Modern Library in a combined edition with A Dreamer's Tales as A Dreamer's Tales and Other Stories in 1917.
The book is a series of short stories, some of them linked by Dunsany's invented pantheon of deities who dwell in Pegāna, which were the focus of his earlier collections The Gods of Pegāna and Time and the Gods. One of the stories, "The Fortress Unvanquishable, Save for Sacnoth," was afterwards (1910) published by itself as a separate book, a now very-rare "Art-and-Craft" style limited edition.
Source: Wikipedia