9.21am: business as usual on a high street in England.9.22am: the explosions are heard for miles around, and in the early confusion there is talk of a gas leak, a plane crash, and even terrorism . . .The people of Heathwick had been preparing for Christmas unaware that many would die, and the rest would be transformed for ever. Travel with them, second-by-second, through the hopes, fears, love, wo...