Shortly after completing his searing work of non-fiction, The Return, Hisham Matar set off for Siena, a city he had never visited before. His plan was to see the paintings of the Sienese school, to immerse himself in the work of artists he admired perhaps above all others. This short book is the story of how art can console and disturb in equal measure. From the Pulitzer Prize-winning author of "The Return"