In answer to the question, "What is the book about?" This is from a listing on Amazon about the book:
"A thrilling epic about an ancient clash reignited in our time--between a hidden society and heaven's darkest creatures"
"Rich in history, full of mesmerizing characters, and wondrously conceived, Angelology blends biblical lore, the myth of Orpheus and the Miltonic visions of Paradise Lost into a riveting tale of ordinary people engaged in a battle that will determine the fate of the world."