When Denton, the famous American author and expatriate in turn-of-the-century London, receives a letter from a young woman saying she’s in danger and needs his help, he doubts there’s anything he can do. The letter is months old, an...

London in 1900 is a sprawling, chaotic web of change and expansion, perfect for a man like Denton, an American with a violent past seeking anonymity as an outsider. But his notoriety as the author of several dark novels—and the well-kno...