The Monkey and The Tiger includes two detective stories, "The Morning of the Monkey" and "The Night of the Tiger." In the first, a gibbon drops an emerald in the open gallery of Dee's official residence, leading the judge to discover a strangely mutilated body in the woods—and how it got there. In the second, Dee is traveling to the imperial capital to assume a new position when he is separated from his escort by a flood. Marooned in a large country house surrounded by fierce bandits, Dee confronts an apparition that helps him solve a mystery.
Robert Van Gulik (1910-67) was a Dutch diplomat and an authority on Chinese history and culture. He drew his plots from the whole body of Chinese literature, especially from the popular detective novels that first appeared in the seventeenth century.