In Descent: The Heroic Discovery of the Abyss, Brad Matsen brings to vivid life the famous deep-sea expeditions of Otis Barton and William Beebe. Beebe was a very well-connected and internationally acclaimed naturalist, with the power to generate media attention. Barton was an engineer and heir to a considerable fortune, who had long dreamed of making his mark on the world as an adventurer. Together, Beebe and Barton would achieve what no one had done before—direct observation of life in the blackness of the abyss. Here, against the back drop of the depression, is their riveting tale.