A Three-Pipe Problem
A Three-Pipe Problem is a 1975 mystery detective novel by the British writer Julian Symons. A pastiche of the original Sherlock Holmes stories by Arthur Conan Doyle, it takes place in the present day. The title refers to a line spoken in The Red-Headed League, referring to a particularly tricky problem that will take Holmes the time it takes to smoke three pipes to solve. It was followed by a sequel The Kentish Manor Murders.