Chris and Simon cross swords over a medieval X-files collection: necromancers, monsters emerging from graves, an encounter with a fairy-like Woman in White, the walking dead, and, best of all, a trustworthy demon named Oliver, all found in Caesarius of Heisterbach’s thirteenth-century Dialogue on Miracles. Although Caesarius’s purpose was to instruct Cistercian novices, these stories of medieval high strangeness can still delight the Fortean, the anomalist and anyone else interested in the supernatural. So step into the cloister, dear friend...