The Realms Thereunder Ancient Earth Trilogy, Book 1.

Ancient legend tells of an army of knights that will remain sleeping until the last days. The knights are waking up. A homeless man is stalked by a pale, wraithlike creature with a mouthful of needle-sharp teeth. Maimed animals and a host of suicides cluster around a mountain in Scotland. And deep beneath the cobbled streets of Oxford, a malicious hoard besieges a hidden city. Freya Reynolds is a university student with a touch of OCD and...