I’m joined by Antony Cummins, author of many books on medieval Japanese ninja and samurai warriors. We talk about who the samurai were and what their relationship was with the art of ninjutsu. I ask many questions about ninja magic — the kinds of esoteric practices they did that gave them a reputation for having supernatural powers. We also talk about Antony’s recent project of reviving the Natori-Ryu samurai school of war, with the blessings of the Natori family in Japan.