Dr. Watson is courting, and Sherlock Holmes is toying with the idea of retirement. But he hasn't reckoned with the criminals of this world.
A ravenous beast seems to be wreaking havoc on Hampstead Heath, immediately evoking memories of the infamous Hound of the Baskervilles.
During excavations in London, the remains of Oliver Cromwell are discovered – and promptly stolen.
A steward is murdered while crossing the Channel. It seems impossible to prove the culprit responsible.
And to make matters worse, Holmes is being hired by the King of England to handle a sensitive matter as discreetly as possible.
So, retirement is a long way off.

The seamless sequel to the novel THE HOUND OF BAKERVILLE by Arthur Conan Doyle.