Cefalonia, a green and grey island of pine and olive trees in the Ionian Archipelago, revisited--by the son of an Italian who had died there. Actually it had been the site of a gratuitous massacre of 5000 Italian officers and soldiers by the Germans following the Italian armistice with the Allies. With only two names--of a local photographer and a schoolteacher with whom his father had been billeted--the son makes the return to the island and relives the fateful period of the German occupation, the ill feeling which prompts a single German casualty and leads on to the wholesale battle. . . . Mr. Venturi's short novel, almost abbreviated to the authentic incident on which it is based, is handled with quiet tact and retrospective regret--virtues which are not necessarily propitious ones for a book which, like its Italian captain, deserves a better fate.