England, 1913. A sequence of interconnected mysteries, from the fate of a music hall murderer, to a man driven mad by a worm unknown to science, to a bizarre and sinister society which meets in a furniture warehouse – these untold cases hint at something larger. What is the purpose of the enigmatic organisation which calls itself "The Lighthouse"? How much does the Prime Minister know? Is Sherlock Holmes truly retired? And what final confrontation do they face?
Episode 4: The Adventure of the Amateur Mendicant Society Christmas, 1887. A grieving widow receives a curious invitation from a club of which her late husband seemed to be a member: the Amateur Mendicant Society. Dr Watson and an uncharacteristically distracted Holmes investigate, only to pick up the thread of a mystery which will have dreadful ramifications for decades to come.
This one feels like just a chapter in a bigger story, which it is, so no fault there, but there’s really nothing to this particular “adventure” except building mystery for other things. Disappointing.