“An interesting, yet brief message,” Holmes mumbled, tapping the letter with the stem of his pipe. “We shall take the eight-seventeen out of Euston and head for the city of Carlisle, in the county of Cumberland, tomorrow.”

The daring theft of the Arroyo Drums from the Border Regiment brings Sherlock Holmes and the loyal Dr. Watson to Carlisle on their latest adventure.

Martin picks up the pen of Sir Arthur Conan Doyle to communicate a case which has never before been brought to the notice of the public.