"Purgatory Chasm: A Mystery" by Steve Ulfelder is the second book in the Conway Sax Mystery Series, published by St. Martin's Press in 2011. This hardcover book, with a length of 8.4 inches and a height of 1.1 inch, weighs 13.4 ounces and contains 304 pages. The novel is written in English and falls under the genre of fiction, specifically in the genres of Mystery & Detective / Hard-Boiled and Mystery & Detective / General. This compelling mystery follows the story of detective Conway Sax as he solves the enigmatic case of the Purgatory Chasm.