The Portent # 2 of the Facade Saga by Michael S. Heiser
Brian Scott and Melissa Kelley live together under new identities in constant fear of being exposed along with the secrets they carry from their previous involvement with "The Group". Are they being watched? A conspiracy has been going on for centuries involving the ancient tombs, Nazi experiments, UFO's, occult mythologies, biblical theology and technologies. Is this unstoppable evil turning the faith of millions against itself?