One of the hazy images that came to me when I was first plotting Daughter of Mystery was a system of nearly forgotten catacombs under the city of Rotenek. I think the original image was in connection with Margerit and Barbara fleeing when the mystery guild was betrayed. That vision of the scene was discarded, but I kept a vague fondness for the idea of underground passages. The image merged eventually with the developing idea of the chanulezes and the thought that some of them had been covered over and nearly forgotten.