Education: Bachelor, University London, 1960. Doctor of Philosophy, University London, 1975. Career: From assistant lecturer to professor emeritus University Leeds, Leeds, England, 1963—1997, professor emeritus, since 1997. Honorary fellow Queen Mary, London, 2002.

Gaston Louis Alfred Leroux was a French journalist and author of detective fiction. In the English-speaking world, he is best known for writing the novel The Phantom of the Opera (Le Fantôme de l'Opéra, 1910), which has been made into several film and stage productions of the same name, such as the 1925 film starring Lon Chaney, and Andrew Lloyd Webber's 1986 musical. It was also the basis of the 1990 novel Phantom by Susan Kay. Leroux went to school in Normandy and studied law in Paris, graduating in 1889. He inherited millions of francs and lived wildly until he nearly reached bankruptcy. Then in 1890, he began working as a court reporter and theater critic for L'Écho de Paris. His most important journalism came when he began working as an international correspondent for the Paris newspaper Le Matin. In 1905 he was present at and covered the Russian Revolution. Another case he was present at involved the investigation and deep coverage of an opera house in Paris, later to become a ballet house. The basement consisted of a cell that held prisoners in the Paris Commune, which were the rulers of Paris through much of the Franco-Prussian war. He suddenly left journalism in 1907, and began writing fiction. In 1909, he and Arthur Bernède formed their own film company, Société des Cinéromans to simultaneously publish novels and turn them into films. He first wrote a mystery novel entitled Le mystère de la chambre jaune (1908; The Mystery of the Yellow Room), starring the amateur detective Joseph Rouletabille. Leroux's contribution to French detective fiction is considered a parallel to Sir Arthur Conan Doyle's in the United Kingdom and Edgar Allan Poe's in America. Leroux died in Nice on April 15, 1927, of a urinary tract infection.

Anne Perry (born Juliet Hulme) was an English author of historical detective fiction, best known for her Thomas Pitt and William Monk series. In 1954, at the age of fifteen, she was convicted of participating in the murder of her friend's mother. She changed her name to "Anne Perry" after serving a five-year sentence. Her first novel, The Cater Street Hangman, was published under this name in 1979. Her works generally fall into one of several categories of genre fiction, including historical murder mysteries and detective fiction. Many of them feature a number of recurring characters, most importantly Thomas Pitt, who appeared in her first novel, and amnesiac private investigator William Monk, who first appeared in her 1990 novel The Face of a Stranger. As of 2003, she had published 47 novels, and several collections of short stories. Her story "Heroes," which first appeared the 1999 anthology Murder and Obsession, edited by Otto Penzler, won the 2001 Edgar Award for Best Short Story. She was included as an entry in Ben Peek's Twenty-Six Lies/One Truth, a novel exploring the nature of truth in literature. Series contributed to: . Crime Through Time . Perfectly Criminal . Malice Domestic . The World's Finest Mystery and Crime Stories . Transgressions . The Year's Finest Crime and Mystery Stories

Otto Penzler is an editor of mystery fiction in the United States, and proprietor of The Mysterious Bookshop in New York City, where he lives. Otto Penzler founded The Mysteriour Press in 1975 and was the publisher of The Armchair Detective, the Edgar-winning quarterly journal devoted to the study of mystery and suspense fiction, for seventeen years. Penzler has won two Edgar Awards, for The Encyclopedia of Mystery and Detection in 1977, and The Lineup in 2010. The Mystery Writers of America awarded him the prestigious Ellery Queen Award in 1994, and the Raven—the group's highest non-writing award—in 2003.