In the shadowy streets of 1920s London, detective Paul Harley is summoned to the home of Sir Charles Abingdon, a dying man who whispers of a mysterious cult known as Fire-Tongue. As Harley investigates his friend's suspicious death, he uncovers a sinister web of secret rituals, blackmail, and murder orchestrated by a ruthless Eastern mystic seeking vengeance. Joined by his loyal friend Knox, Harley races against time to rescue Abingdon's daughter, Nicol, from the clutches of the hidden Order. But the deeper he delves, the more he realizes that Fire-Tongue's tentacles reach into the highest levels of society—and that no one can be trusted.
