Impossible, a bestselling Italian novel, explores questions of integrity, loyalty and perception versus truth.On that morning high in the Dolomite mountains there were two hikers some distance apart. The path in places was narrow and perilous. One of the men fell to his death. The other is arrested and over many days is interrogated by a young magistrate who is intent upon having him tried for murder.This story is at once a game of cat-and-mouse in which the prisoner, a survivor of a left-wing cadre now long dispersed, holds his own. Nor is he crushed by his solitary confinement from which he communicates with his distant beloved. This novel is a brilliant hymn to the lure of the mountains, an engrossing illumination of political brotherhood, and also the subtlest of detective stories.