Andrew Collins explores the possibility that the Nephilim and the Watchers from the Old Testament were celestial beings that became the progenitors of a dominating species of human. He suggests that the books of Genesis and Enoch tell of otherworldly beings comingling with primitive human-like creatures to form a race of giants that became the power elite of the ancient world. With the discovery of the Denisovan hominin, an extinct species of human, comes the very real possibly that these fallen angels were indeed flesh and blood beings, genetically and politically influencing the course of human history.