By the Pricking of My Thumbs By the Pricking of My Thumbs By The Pricking of My Thumbs is a work of detective fiction by Agatha Christie and first published in the UK by the Collins Crime Club in November 1968 and in the US by Dodd, Mead and Company later in the same year. The UK edition retailed at twenty-one shillings (21/-) and the US edition at $4.95. It features her detectives Tommy and Tuppence Beresford. Tommy and Tuppence were unusual in that they aged from novel to novel unlike Miss Marple and Hercule Poirot, whose age remained more or less the same from Christie's
Detectives Inc. follow Will Eisner's influential "A Contract with God". The Gay League's "LBGT Comics Timeline" cites the book as "featuring the first lesbian characters in mass-market comics". The books' genesis, author Don McGregor recalled, had gone back several years. "I had created "Detectives Inc." as early as 1969, as roles for Alex Simmons and myself to play in Super8 millimeter movies I was making". In the early 1970s, the two produced a crude "Detectives Inc." comic book, self-published via photocopier. In 1980, Eclipse Enterprises published "Detectives Inc.: A Remembrance of Threatening Green", the first of what would become two graphic novels