PompeiiFROM THE NUMBER ONE BESTSELLING AUTHOR OF AN OFFICER AND A SPY AND THE SECOND SLEEP 'A pulse rate speeding masterpiece' Sunday Times 'A stunning novel . . . the subtlety and power of its construction holds our attention to the end' The Times During a sweltering week in late August, as Rome's richest citizens relax in their villas around Pompeii and Herculaneum, there are ominous warnings that something is going wrong. Wells and springs are failing, a