Summer, 1901. For days, heat has been rising. London swelters; a long-expected storm promises to break.
In Baker Street, Sherlock Holmes is visited by a peculiar American
who arrives with a warning about a strange new kind of murderer. In the
West End, Dr John Watson is watching his wife, the actress, Genevieve,
prepare for her greatest role to date - only for her to be confronted by
a terrible ghost from the past.
There are surprising connections between these events, a web of
apparent coincidence which soon draws in others: Colonel Sebastian
Moran, Mycroft Holmes, a dangerously ambitious young politician and -