Uncle Petros is the narrator’s uncle, a mathematician who mysteriously quit math after years of devotion to an “impossible” problem. The novel contains two intertwined plots: the story of the narrator’s discovery of his uncle’s story and Petros’ story itself. During the telling of the tales we get some insight into the world of mathematics and some provocative thoughts about choosing goals. I enjoyed this book; I really should read more fiction from outside of my usual genre boxes.