Mycroft (a scientist) and his wife Ona (a doctor), Nicholas (a monk) and Berenice (an artist) are all mysteriously transported to a beautiful but strange underground world where they find a house in waiting for them, and all their needs provided for by a mysterious childlike being. But they don’t know why they have been brought there. This is a very curious fantasy novel which I frankly didn’t understand. The philosophical musings were over my head. The characters reactions when they finally learn why they have been brought there seemed very odd to me. The ending completely baffled me. I just didn’t like it at all.