One of London's first forensic detectives chases a grisly killer in this stunning debut mystery rich in period detail and sinister intrigue. London in 1856 is gripped by a frightening obsession. The specimen-collecting craze is growing, and discoveries in far-off jungles are reshaping the known world in terrible and unimaginable ways. The new theories of evolution threaten to disrupt the fragile balance of power that keeps the chaotic city in order--a...