Thresholds

Thresholds is the fourth in a series of books that begins with To Bind Fast. It continues the search of the main characters, Mark and John, for answers as to how things work—that is, all things that are knowable.

One of the main objects of their examination is human behavior, and the values that sometimes attend that behavior. Over the course of these four novels, Mark and John have gone from each quietly living in near-solitude, to living titillating lives in the company of two very creative women who re-involve them in the buzzing world of human activity.