" The Horse of the Invisible" is a short story by William Hope Hodgson. William Hope Hodgson (15 November 1877 - April 1918) was an English author. He produced a large body of work, consisting of essays, short fiction, and novels, spanning several overlapping genres including horror, fantastic fiction and science fiction. Hodgson used his experiences at sea to lend authentic detail to his short horror stories, many of which are set on the ocean, including his series of linked tales forming the "Sargasso Sea Mythos." His novels such as The Night Land and The House on the Borderland feature more cosmic themes, but several of his novels also focus on horrors associated with the sea. Early in his writing career he dedicated effort to poetry, although few of his poems were published during his lifetime. He also attracted some notice as a photographer and achieved renown as a bodybuilder. He died in World War I at the age of 40. In 1899, at the age of 22, he opened W. H. Hodgson's School of Physical Culture, in Blackburn, England, offering tailored exercise regimes for personal training. Among his customers were members of the Blackburn police force. In 1902, Hodgson himself appeared on stage with handcuffs and other restraining devices supplied by the Blackburn police department and applied the restraints to Harry Houdini, who had previously escaped from the Blackburn jail. His behavior towards Houdini generated controversy; the escape artist had some difficulty removing his restraints, complaining that Hodgson had deliberately injured him and jammed the locks of his handcuffs. Hodgson was not shy of publicity, and in another notable stunt, rode a bicycle down a street so steep that it had stairs, an event written up in the local paper. Despite his reputation, he eventually found that he could not earn a living running his personal training business, which was seasonal in nature, and shut it down. He began instead writing articles such as "Physical Culture versus Recreative Exercises" (published in 1903). One of these articles, "Health from Scientific Exercise," featured photographs of Hodgson himself demonstrating his exercises. The market for such articles seemed to be limited, however; so, inspired by authors such as Edgar Allan Poe, H. G. Wells, Jules Verne and Arthur Conan Doyle, Hodgson turned his attention to fiction, publishing his first short story, "The Goddess of Death," in 1904, followed shortly by "A Tropical Horror." He also contributed to an article in The Grand Magazine, taking the "No" side in a debate on the topic "Is the Mercantile Navy Worth Joining?" In this piece, Hodgson laid out in detail his negative experiences at sea, including facts and figures about salaries. This led to a second article in The Nautical Magazine, an expose on the subject of apprenticeships; at the time, families often were forced to pay to have boys accepted as apprentices. Hodgson began to give paid lectures, illustrated with his photography in the form of colorized slides, about his experiences at sea. Although he wrote a number of poems, only a handful were published during his lifetime; several, such as "Madre Mia," appeared as dedications to his novels. Apparently cynical about the prospects of publishing his poetry, in 1906 he published an article in The Author magazine, suggesting that poets could earn money by writing inscriptions for tombstones. Many of his poems were published by his widow in two posthumous collections, but some 48 poems were not published until their appearance in the 2005 collection The Lost Poetry of William Hope Hodgson."