After escaping the Guild in England, Philip, Alayna, and Beathan flee east. Yet despite their ingenuity and courage, they find themselves hard-pressed to survive. The wintery landscape of Transylvania provides a multitude of dark and dangerous challenges—not the least of which is the trace in Philip's blood, allowing the Guild to track them. From night-walking vampires, to maniacal scientists, death seems probable and at times even a certainty. When one of their own is captured, the company is set on a collision course with the Guild, a clash with implications carrying far beyond the darkened skies of Transylvania.