numerous subplots that advance the main action only minimally. The Sinking of the Odradek Stadium, like The Conversions, is the story of a hunt for treasure, this time told through a series of letters between a Southeast Asian woman named Twang and her American husband, Zachary McCaltex. The couple are researching the fate of a vanished cargo of gold that once belonged to the Medici family. As in the earlier novels, there are various odd occurrences and ambiguous conspiracies; many of the book's set-pieces revolve around a secret society (The Knights of the Spindle), which Zachary is invited to join. Reflecting the author's interest in different languages, one pivotal letter in the book is written in the (fictitious) idiom of Twang's (fictitious) homeland, and to translate it the reader must refer back to earlier chapters to find the meanings of the words. In a typical Mathews conceit, the title of the novel is apparently meaningless until the reader reaches the final pages, at which point it reveals an important twist in the story that is nowhere revealed in the text of the book itself. The novel is provided with an index, which may be deliberately unreliable. David Maurer's The Big Con provided Mathews with a number of slang terms, and possibly some plot elements as well. Another apparent source was The Rise and Decline of the Medici Bank: 1397-1494 by Raymond de Roover; Mathews implicitly acknowledged his debt by introducing de Roover and his wife in the text as minor characters. Mathews's next novel, Cigarettes, marked a change in his work. Less whimsical but no less technically sophisticated than his first three novels, it consists of an interlocking series of narratives revolving around a small group of interconnected characters. The book's approach to narrative is generally realistic, and Cigarettes is ultimately moving in a way that none of his previous books attempted to be. My Life in CIA, the last published novel in his lifetime (if it is indeed fiction), was purportedly Mathews's memoir of a period in his life in which he was rumored to be a CIA agent and decided to play along and pretend that he in fact was one. His final novel, The Solitary Twin, was published posthumously in March 2018 by New Directions. Other works Mathews's shorter writings frequently cross or deliberately confuse genres. A case in point is the piece entitled "Country Cooking from