A key to treehouse living

I'm fascinated with books that surprise me; this book surprised me.

A Key to Treehouse Living is the coming-of-age story of a young boy who grows up without parents, who comes to live with an eccentric uncle, who builds a treehouse in a park, who takes off on a river journey, and the entire story is told through a series of glossary words.

It's captivating. It's novel. It's deeply touching.