A Yankee engineer from Connecticut is accidentally transported back in time to the court of King Arthur, where he fools the inhabitants of that time into thinking that he is a magician, and soon uses his knowledge of modern technology to become a "magician" in earnest, stunning the English of the Early Middle Ages with such feats as demolitions, fireworks, and the shoring up of a holy well.

Samuel Langhorne Clemens (1835-1910), better known by his pen name Mark Twain, was an American writer, humorist, entrepreneur, publisher, and lecturer. He is best known for his two novels – The Adventures of Tom Sawyer and its sequel, the Adventures of Huckleberry Finn, but his satirical stories and travel books are also widely popular. Twain's wit and satire, in prose and in speech, earned him praise from critics and peers. He was lauded as the greatest American humorist of his age.