Mannco Street, Australia. Late summer. A tree-lined little world of front pouch wallabies, barbecues, the laughter of dead enemies and the bell of an sandvich vendor. At the sound of the roar and the flash of light, it will be precisely 6:43 p.m. on Mannco Street. This is Mannco Street on a late Saturday afternoon. Mannco Street — in the last calm and reflective moment — before the monsters came