Roald Dahl was a British novelist, short story writer and screenwriter of Norwegian descent, who rose to prominence in the 1940's with works for both children and adults, and became one of the world's bestselling authors. Dahl's first published work, inspired by a meeting with C. S. Forester, was Shot Down Over Libya. Today the story is published as A Piece of Cake. The story, about his wartime adventures, was bought by the Saturday Evening Post for $900, and propelled him into a career as a writer. Its title was inspired by a highly inaccurate and sensationalized article about the crash that blinded him, which claimed he had been shot down instead of simply having to land because of low fuel. His first children's book was The Gremlins, about mischievous little creatures that were part of RAF folklore. The book was commissioned by Walt Disney for a film that was never made, and published in 1943. Dahl went on to create some of the best-loved children's stories of the 20th century, such as Charlie and the Chocolate Factory, Matilda and James and the Giant Peach. He also had a successful parallel career as the writer of macabre adult short stories, usually with a dark sense of humour and a surprise ending. Many were originally written for American magazines such as Ladies Home Journal, Harper's, Playboy and The New Yorker, then subsequently collected by Dahl into anthologies, gaining world-wide acclaim. Dahl wrote more than 60 short stories and they have appeared in numerous collections, some only being published in book form after his death. His stories also brought him three Edgar Awards: in 1954, for the collection Someone Like You; in 1959, for the story "The Landlady"; and in 1980, for the episode of Tales of the Unexpected based on "Skin".

Blackwood was born in Shooter's Hill (today part of south-east London, but then part of northwest Kent) and educated at Wellington College. His father was a Post Office administrator who, according to Peter Penzoldt, "though not devoid of genuine good-heartedness, had appallingly narrow religious ideas." Blackwood had a varied career, farming in Canada, operating a hotel, as a newspaper reporter in New York City, and, throughout his adult life, an occasional essayist for various periodicals. In his late thirties, he moved back to England and started to write stories of the supernatural. He was very successful, writing at least ten original collections of short stories and eventually appearing on both radio and television to tell them. He also wrote fourteen novels, several children's books, and a number of plays, most of which were produced but not published. He was an avid lover of nature and the outdoors, and many of his stories reflect this. Lovecraft wrote of Blackwood: "He is the one absolute and unquestioned master of weird atmosphere." His powerful story "The Willows," which effectively describes another dimension impinging upon our own, was reckoned by Lovecraft to be not only "foremost of all" Blackwood's tales but the best "weird tale" of all time. Among his thirty-odd books, Blackwood wrote a series of stories and short novels published as John Silence, Physician Extraordinary (1908), which featured a "psychic detective" who combined the skills of a Sherlock Holmes and a psychic medium. Blackwood also wrote light fantasy and juvenile books. The son of a preacher, Blackwood had a life-long interest in the supernatural, the occult, and spiritualism, and firmly believed that humans possess latent psychic powers. The autobiography Episodes Before Thirty (1923) tells of his lean years as a journalist in New York. In the late 1940s, Blackwood had a television program on the BBC on which he read . . . ghost stories!