This book is part of a group read at the church where I sing. Classified as science fiction because it occurs in a society on the moon of a different planet far into the future, it is the cheeriest science fiction I have ever read. One of the main characters, Sibling Dex, is a tea monk who travels from town to town, village to village, dispensing the right herbal tea and “advice” to the people who come to see him. He becomes frustrated and bored with this life and decides to head out into the countryside, out into the untouched nature where all the old roads are overgrown or now non-existent.

Due to past experiences, these humans have freed all the robots after they became sentient, and they have an agreement as to where each lives. In addition, humans have decided to live very differently, leave a lot of nature to nature and so live only in certain areas, in bigger towns and small villages with some nature here and there, but most of nature is now untouched and left to do whatever nature does.

Dex heads out in his tea house wagon which he pedals to generate electricity. It is self containing and he has everything he needs for at least two weeks. At one campsite not too far into the wilderness, a robot named Mosscap appears. Mosscap has volunteered to go into human territory per the ancient agreement between humans and robots and learn about humans. Dex finds this a mixture of frightening, intriguing, and confusing. Yet he agrees to allow Mosscap to accompany him on his adventure. The rest of the book is about what they discover, what they learn from each other, and the future they plan.