CHAPTER FIVEAn air watcher, it doesn’t matter which one of the thousands he was, stepped from the hospital elevator at the third, and top floor. He went through a door marked NO ADMITTANCE and climbed iron stairs to the roof. It was black and drizzling; he hoped the rain wouldn’t get worse, at least not during his tour of duty. He had heard on a news broadcast that west of his area there were cloudbursts. He was tired from a long day at his appliance store on Broad Street and he was a little sorry he had signed up for this Ground Observer Corps thing, but everybody in Rotary was taking a shift so he felt he had to go along. He threaded his way around the invisible obstacles that studded the hospital roof and groped at the black-out curtain of the shack. It was dry and bright inside the l

