London, 1870: Five years after Dante-esque killings stunned Boston, a politician is found in a London park, killed by an enormous stone device etched with a verse from the Divine Comedy. After similar deaths occur, poet Christina Rossetti fears her missing brother Dante Gabriel Rossetti will be next. In this stand-alone sequel to The Dante Club, Christina enlists Robert Browning, Alfred Tennyson, and Oliver Wendell Holmes to decipher the literary clues, as they wend between opulent estates and the city's seedy underworld to find an enigmatic killer.