Joseph Allan Dunn (1872-1941), best known as J. Allan Dunn, was one of the high-producing writers of the American pulp magazines. He published well over a thousand stories, novels, and serials from 1914-41. Atlantis is a fictional island first mentioned in Plato's dialogues Timaeus and Critias, written in c. 360 BC. According to Plato, Atlantis was a land and sea power situated "in front of the Pillars of Hercules" that had conquered many parts of Western Europe and Africa 9,000 years before the time of the Athenian lawgiver Solon, i.e. in the 10th millennium BC. After a failed attempt to invade Athens, Atlantis sank into the ocean "in a single day and night of misfortune."