Not dated but 1918. 1st UK edition, preceded by publication in the US in 1916. 246pp. Red cloth boards (a little rubbed at edges, faded, but strong and clean). Occasional faint spotting. Stagg created the fictional sleuth Thornley Colton, known as Problemist, the genre's first blind detective, in New York City in the early 20th century. Independently wealthy, Colton relies on his intelligence and superb senses, honed due to his blindness, and takes only the most difficult cases for the sheer pleasure of solving mysteries. High Speed is the only Stagg novel not to feature Colton. High Speed was made into a film of the same name in 1920.