Dogged by depression and doubt, Sherlock Holmes is preparing to return to England after his visit to the Mayo Clinic when he receives a shock: a note slipped under his hotel room door from a vicious murderer he'd nearly captured in Munich in 1892. The Monster of Munich has relocated to Eisendorf, a tiny village near Rochester, Minnesota. Replete with all the gothic richness of Larry Millett's earlier Holmes novels, Sherlock Holmes and the Eisendorf Enigma links events in 1892 Germany with those in small-town Minnesota in 1920 in a double mystery that tests the aging detective's mettle — and the reader's nerve — as never before.