Sister Evangeline was just a girl when her care was entrusted to the Franciscan Sisters of Perpetual Adoration. Now, at twenty-three, she discovers a 1943 correspondence between the convent's late mother superior and the famous philanthropist Abigail Rockefeller that plunges her into a secret history stretching back a millennium: an ancient conflict between the Society of Angelologists and the monstrously beautiful descendants of angel and humans, the Nephilim. Blending biblical lore, the Miltonic fall of the Rebel Angels, the apocryphal Book of Enoch, and the myth of Orpheus, 'Angelology' is a luminous, riveting tale of ordinary people caught up in a battle that will determine the fate of the world.