Hugh Bowden is Professor of Ancient History at King's College London. He is the author of books on the oracle of Delphi, ancient mystery cults and Alexander the Great. The main focus of his research is religious experience in the ancient world. Esther Eidinow is Professor of Ancient History at the University of Bristol. She works on ancient Greek culture and literature, especially religion and magic, and has published widely in this area. Most recently, she designed and led the Arts and Humanities Research Council-funded Virtual Reality Oracle project. She is also a Fellow of the British Academy.