An ancient evil patrols the skies above the Thames, the Romantic poets unite in battle against the Muses, and a parallel world of magic exists in the London streets. Awoken by the poet Christina Rossetti, the vampire Polidori is awake once more. Fiercely protective of his beloved Christina, he bestows upon her the gift of divine poetry - but ensures the violent death of any potential rival for his affections. Trapped by her connection to the undead creature - poised between love, and horror for her immortal soul - Rossetti shuts herself away from the world. But Polidori's abduction of another young girl compels her to join forces against him. With the aid of her brothers, Gabriel and William, and her sister Maria, she enters London's unseen underworld. It is a realm of magically protected human familiars, jealous supernatural beings, and hungry ghosts.