H. Rider Haggard 
Red Eve 

Sir Henry Rider Haggard was an English writer of adventure novels set in exotic locations, predominantly Africa, and the creator of the Lost World literary genre. His stories, situated at the lighter end of the scale of Victorian literature, continue to be popular and influential. He was also involved in agricultural reform and improvement in the British Empire. "Red Eve" is a novel by H Rider Haggard set in the reign of Edward III. In this tale of the Middle Ages, Rider Haggard has given us a picture in his vivid and striking way of the days when feudalism was in the land and every man held his life and love in the strength of his sword arm. (Excerpt from Wikipedia)