Shadwell Rafferty

As the city of Minneapolis prepares for a visit from President William McKinley, someone else prepares for murder. On the day before the visit, a union activist is found hanged, naked, outside a ruined mansion. A placard around his neck reads "THE SECRET ALLIANCE HAS SPOKEN." Who is the alliance? What does it want? How was the victim involved with the city's corrupt mayor? And why did he possess a photograph of a prominent citizen in a compromising position?

A letter, written in a secret cipher he recognizes all too well, reveals that an old foe of Holmes - a murderer he once captured after an incredible duel of wits - is back, has kidnapped his previous victim’s widow, and is now impersonating Holmes himself. Holmes must once again match wits with a particularly cunning adversary, one whose hatred of Holmes has seemingly become the killer’s single greatest obsession.

St. Paul, Minnesota. October 1, 1917. High above the city, a renowned local financier named Artemis Dodge lies facedown on the floor of his armored penthouse sanctuary, a single bullet hole in his head. Thirty stories up, in the city’s tallest building, and not a shred of evidence or sign pointing to anyone having broken into the wealthy man’s fortress. It is - to all appearances - an impossible crime.