" A] dark, bloody triumph...convincingly mad, alternatively even-tempered, hallucinatory and cackling...the book's characters are great, its race to capture the murder is beautifully tense, and it has one of the best twists I can remember in any recent historical thriller." -- The New York Times Book Review "Absolutely riveting....Authentic in tone, well researched, and darkly atmospheric of Victorian London, this historical thriller combines the...