She locked the outer door, went after him.

‘Sorry… How did you know that we’d want you?’

They were out into the evening rain.

She said flatly, ‘Administration’s got the audit team in, they’re mob-handed. There’s Major Walsh’s leaving bash – free drinks bring them out of their holes. The mess corporal, the spotty one, he’s got flu. Penny’s on holiday…’

He grinned. ‘Be a black day, the darkest, Corporal, if promotion ever claimed you.’

‘Just try to do my job. How did it go?’

The beginning of her day had followed the same precise routine as every working morning. It was sixteen minutes past seven when Corporal Tracy Barnes had unlocked the outer door to building G/3, gone down the empty corridor and used a second key to let herself into Room 29. She was always in G/3/29 before twenty past seven. The rest of them, Major Johnson, Captain Christie, the warrant officers, sergeants and clerks, would drift into G/3 before nine. She valued that time to herself: she always said it gave her the chance to get on top of each day.

She had put the kettle on. With her third key, and her knowledge of the combination, she’d opened the safe. She kept the coffee in it, the tea, biscuits and apples. The rooms of G/3 were the home of the unit of the Intelligence Corps at Templer Barracks, Ashford in Kent, dealing solely with the subject matter of RUSSIAN FEDERATION/MILITARY/ANALYSIS, and they were the kingdom of Corporal Tracy Barnes. The kettle had boiled. She had crunched the biscuits and bitten at an apple. It was her place. She could put her hand on any sheet of paper, any map, any photograph in the wall of steel-plate filing cabinets, padlocked in the Major’s office, the Captain’s office and in the cubbyhole space between them where she worked. She could flit her way through the banks of information held in the G/3 computers that linked Templer Barracks with the London offices of the Chief of Defence Intelligence and the new Bedfordshire base at Chicksands. She knew every code that must be dialed in for the secure fax transmissions. They told her, Major Johnson and Captain Christie, that she was indispensable.