The peak of Vesuvius loomed above the imposing perimeter wall of the San Martino monastery. To the right, Capri was almost completely obscured in the haze, a fading memory. In the strait between the island and the peninsula the dark rectangular block of a ship seemed to hover on the horizon, perhaps the ferry which Zen had seen that morning, now on its way to Sicily, or even farther south, to Malta and Tunisia.

'Anyway, I suppose we had to do something,' said the woman sitting beside Aurelio Zen, as though concluding a lengthy internal debate.

'Of course we did/ he agreed idly. 'Whatever the truth about that pair may be, they certainly aren't the sort you want your daughters associating with. Family background unknown, consorting with known criminals, frequenting some of the worst streets in the city, no visible means of support but plenty of money to throw around…'

'Not to mention handsome and charming/ added Valeria.

Zen nodded slowly.

'It's a deadly combination all right. One which both demands and justifies the measures we're taking.'

'Yes, but will it work?'

They had met by the purest chance at a party given by the British Consulate. Zen had been invited through an official whom he had helped to uncover a scheme to smuggle illegal Asian immigrants into Britain on cargo ships plying between Naples and Liverpool. As for Valeria, she was there thanks to her friendship with the wife of some politico in the economic affairs department of the Campagnia regional government, who had made a polished, vapid, interminable speech of the kind which such functionaries can turn out at a moment's notice to suit any occasion from a conference marking the anniversary of the birth or death of X to the inauguration of a new building, bilateral agreement, cultural artefact, exhibition or plaque to, by, in or about Y The idea behind the gathering, as far as Zen could make out, was to sip industrial-grade sparkling wine, nibble at fiddly, self-destructing canapes and socialize at the top of your voice with people you already knew or who were eager to know you. This left Zen, a nobody who knew no one, at a distinct disadvantage. He was just wondering how soon he could decently leave when his contact appeared and led him across the room to be introduced to Signora Valeria Squillace.