Angelology (n) Theological doctrine of angels and/or it's study. Delilah Winchester is the newest hunter and the first and only Winchester girl. Where everything begins, everything will end, and Delilah's path in leaving her innocence involves Angels, Archangels and the Devil. Her brothers protect her as much as they can but it'll never leave her mind the inquiry, "What if I had stayed?" Angelology © 2012. Do not own Supernatural ® (sadly)