A brilliant young Cambridge University engineer is carrying out secret research for the Admiralty. It will lead to the building of the world’s most powerful battleship, The Dreadnaught. His adventuress mother is kidnapped and he seeks the help of Sherlock Holmes. This new mystery is a tribute to The Engineer’s Thumb.
The characters of the Sherlock Holmes stories and the first fifty Sherlock Holmes stories published are in the public domain. New Sherlock Holmes Mysteries written by Craig Stephen Copland are protected by copyright. © 2023 · sherlockholmesmystery.com Website design by Annex Graphics