Holmesian Speculation (also known as The Sherlockian game, the Holmesian game, the Great Game or simply the Game) is the practice of expanding upon the original Sherlock Holmes stories by Sir Arthur Conan Doyle by imagining a backstory, history, family or other information for Holmes and Watson, often attempting to resolve anomalies and clarify implied details about Sherlock Holmes and Dr. Watson. It treats Holmes and Watson as real people and uses aspects of the canonical stories combined with the history of the era of the tales' composition to construct fanciful biographies of the pair. The information is not canon to the original stories.