nostrils. The door opened and Flight Officer Sitwell came in, followed by a major with a handlebar moustache. The three smokers quickly stubbed out their cigarettes in the ashtray. They all stood and saluted.
The major said, ‘Right then. Let’s get this show started.’
Sitwell looked with distaste at the smouldering ashtray, and then at Kay and Barbara. ‘Good morning, ladies.’
‘Ma’am.’
‘When you’re ready.’
They left the mess together and went out into the street. It was starting to get light. A few pedestrians were on their way to work. In the bank opposite, the windows were now lit. A sentry had taken up position beside the door. They showed their identity cards and went inside. The group separated with mutual wishes of good luck. The lieutenants followed the major left across the lobby – to a rear exit, presumably, allowing them access to the waste ground behind the bank where the radar vans were stationed. Kay and Barbara trailed Sitwell to the right, through the counter and down the steps to the vault. Knowsley was at his desk, talking on the telephone. At a table beside him sat a Signals Corps corporal. On the other side of the room three WAAF sergeants were already behind a row of desks. Kay and Barbara took their old seats in the centre. Kay was relieved to see that their places had already been set with slide rules, logarithm tables, pencils, notepads. She slipped off her coat and hung it over the back of her chair.
Sitwell stood in front of the blackboard. Behind it, an old-fashioned station clock showed two minutes to eight. She said, ‘All we need now is a V2. And while we wait, we practise. Let’s see how much you’ve forgotten.’ She turned and began chalking rapidly on the board.
As the morning went on, the vault began to get busier. WAAF sergeants came and went. Messages arrived by motorcycle courier. A colonel of the Survey Regiment, immaculate in his uniform, stiff as a guardsman, conferred with Knowsley then prowled around the room. He checked the maps and the telephones, looked at his watch, sat in the corner for five minutes and finally got up and left. Knowsley came over and perched on the edge of the central table, watching Kay and Barbara as they worked their slide rules, leafed through their logarithms, filled sheet after sheet with calculations. Sitwell timed them with her stopwatch: seven minutes twenty – no good. Six minutes fifteen – better. Five minutes fifty-two – that’s more like it. The wing commander lit a pipe and clamped it between his teeth. Pungent clouds of blue smoke drifted across the maps. His foot tapped nervously against the table leg.
Just before ten o’clock, Flight Officer Sitwell announced that they had practised enough. ‘Take a break. If you need the lavatory, go now. It’s upstairs. But one at a time. Be quick about it, and don’t leave the building.’
Barbara said to Kay, ‘Do you want to go?’
‘In a minute. You go first.’
Barbara hurried up the stairs. Kay stood and stretched, rotated her head. The room had gone very quiet. There was no sound except the ticking of the clock. Knowsley looked pensive. ‘They seem to be taking their time today. Normally they’ve launched by now.’
‘There’s no pattern to it, sir?’
‘None. Sometimes there are three or four hours between launches. Sometimes they send up two, more or less at the same time.’ He sucked on his pipe and inspected the bowl. He was fiddling, Kay realised, to calm his nerves, talking to fill up the silence. ‘I don’t know what their thinking is, operationally. I guess they have a lot of technical problems and just have to fire when they’re ready.’ He had smoked all his tobacco. The pipe made a whistling noise. ‘I’d love to watch one take off.’
‘Would you really?’
‘Oh yes. It must be a hell of a sight. Wouldn’t you?’
‘I’ve never really thought about it.’
‘How odd. Perhaps it’s just a male thing. Freudian, and all that.’
A telephone rang. They both swung round to look at it. The Signals Corps corporal snatched up the receiver, listened for a second, covered the mouthpiece with his hand and called out, ‘They’ve launched!’
An electric bell began to ring. Just like school, Kay thought. Everybody moved quickly back to their places. She could feel her heart thumping. Barbara clattered down the stairs and rushed to her seat. She made a face at Kay across the table. ‘Bloody typical – it has to happen while I’ve got