Author: B P Walter “The Treehouse” by B P Walter unsettles readers with a story told through the eyes of the perpetrators of a horrible crime. It follows two brothers in their 30s — Robert and Kieran — who are bound by blood, secrets, and a terrible act they committed in their youth. Their inner world is an uneasy position for the reader to inhabit, and at its best, the novel leans into that discomfort.