The observant cabby’s eyes gleamed in the rear-viewing mirror, his shoulders shook perceptibly and he launched into a cheery offering from Chu Chin Chow.

Lord Dedham had seen the musical extravaganza three times. It was his favourite musical comedy. He recognized the sumptuously romantic duet ‘Any Time’s Kissing Time’.

Cheeky blighter, Dedham thought, with an indulgent grin. Typical London cabby. Ought to be keeping his eyes on the road, not spying on his passengers. He wondered if his companion would take offence. Many women would.

His companion responded to the effrontery by leaning mischievously towards the admiral and biting his ear, her aim, in the dark, surprisingly sure. Then she joined in with the song, timing her entrance perfectly, weaving her clear soprano voice into the chorus to sing along with the cabby.

‘Nearly there, my love,’ growled Dedham. ‘Did you ask Peterson to wait up?’

‘As though he’d agree to do otherwise, Oliver! He’ll be there waiting with your eggnog at the ready. But I dismissed your valet. I’ll help you out of that clanking regalia myself.’ And, as though the promise of eggnog and wifely ministrations was not enough to stiffen the sinews, she squeezed his arm as they turned from the hurly-burly of Buckingham Palace Road into the quiet opulence of the streets approaching Melton Square. ‘Oh, it’s so good to have you home again, darling, and I shall go on saying that until you beg me to stop. And when we arrive, you will remember to do as Joe told you, won’t you?’

‘Dash it all, Cassandra, we’re in Belgravia not Belfast!’ he objected.

Lady Dedham quelled her husband’s predictable splutterings by her usual method of putting a finger firmly over his mouth. ‘And thank God for that! But your young friend at the Yard is worth hearing. It’s a very simple arrangement. It makes complete sense. We must prepare ourselves to observe this routine until all the unpleasantness blows over or you and that fire-eater Churchill stop making sabre-rattling speeches, darling, whichever is the sooner. Yo u it was who insisted on dismissing the police protection squad Joe kindly set up for you, and now you must perform your part of the bargain.’

‘Protection squad!’ The admiral spat out his derision.

‘He didn’t have to do that, you know – over and above his duty. You’re an ungrateful piggy-wig, Oliver. You listen to no one. I can’t think why you objected. Those Branch men he sent round were terribly discreet … really, you’d no idea they were there. And the young one was incredibly handsome! I was so enjoying having him about the place. He cheered us all up.’ She weathered his splutter of outrage and sailed on. ‘But you agreed to the commander’s alternative proposals and I for one shall hold you to your promise. I have a part too, you know, and I fully intend to play it. I expect nothing less from you. Now – tell the driver what you want him to do. And don’t cut it short – I shall be listening!’

The taxi pulled up in front of a late Georgian house on the northern side of the park-like boulevard that was Melton Square. Heavily porticoed balconies and densely planted patches of garden gave these houses an air of discreet dignity. Dedham looked about him with satisfaction at the solid grandeur, the sedate Englishness, the well-lit pavements, of what he considered to be the heart of London. Nothing truly stirring had happened, in public at least, here in the Five Fields since the Earl of Harrington’s cook had been set upon and beaten to death by highwaymen a century before. Since the arrival of the gas-lamps, the only crimes hereabouts were committed behind closed doors by the inhabitants themselves and went unrecorded unless, chiming with the spirit of the times, they gave rise to an ennoblement of some sort for the perpetrator. There were more rich, influential villains per square yard here in this genteel quarter than in Westminster, the admiral always reckoned.

He frowned to see one of these approaching. A gent in evening dress, opera cape about his shoulders, top hat at a louche angle over his forehead, was weaving his way uncertainly along the pavement.

‘I say, Cassie.’ He drew his wife’s attention to the staggering figure. ‘Who’s this? Do we know him? He looks familiar.’

‘He is familiar! Look away at once, Oliver!’ Cassandra put up a hand, seized his chin and turned his head from the window. ‘I forget you scarcely know your own neighbours. But that’s ghastly old Chepstow. Drunk as a lord again!’

‘If that’s Chepstow he is a lord,’ objected Dedham, trying to turn for a better view. ‘He’s entitled, you might say.’

‘It’s no joke, Oliver! Stay still and give him time to move off. He’ll recognize you. And you’re the one man in London everyone – drunk or sober – wants to talk to and shake hands with. You really have no idea, have you? You’re twice a hero now, you know. He’d expect to be invited in for a nightcap. Darling, you’ve been away from me for six months! I’ve no intention of sharing you with any old toper.’ She pulled his head down into an enthusiastic kiss. ‘Ah … there he goes … Now, Oliver – the cabby’s waiting. Get on with the briefing.’

The driver had been grinning in understanding throughout the conversation. He seemed to have a sense of humour and Dedham prepared himself for a sarcastic response to the guff he was about to spout. However, the man accepted his fare and the generous tip he usually enjoyed from the denizens of these fifteen square acres and listened, head tilted in an attitude of exaggerated attention, to the request that came with it. He nodded when the briefing was over and returned a simple ‘Understood, sir’ in response to the crisp naval tones.

As instructed, he hooted twice and waited for thirty seconds before winking his headlights three times. He even managed to keep a straight face throughout the proceedings. ‘There we are, sir. Signal acknowledged. Light’s come on in the vestibule,’ he said, enjoying the game. ‘And the front door’s opening. Here we go! Time for the lady to make her sortie.’

With a snort of amusement Lord Dedham understood that the man had been listening as his wife rehearsed him in his exit tactics.

‘Road’s clear and well lit, sir, no suspicious persons or obstacles in sight, but I’ll get out, take a quick recce and then launch the lady.’ The driver had suddenly about him the briskness and wariness of an old soldier. ‘Just in case. You never know who’s lurking in the shrubbery these days.’

He got out and walked up the path, peering into the bushes. He kicked out at an innocent laurel or two before returning to the rear of his motor to open up for Lady Dedham.

‘Fire Torpedo One!’ she said with a grin for the cabby and, clutching her evening bag tightly in her right hand, she walked off quickly towards the front door the butler was holding wide in welcome. She turned on the doorstep and gave a merry wave.

Before the driver could fire his second charge, a slight form dashed across the street and accosted him. ‘A taxi! What luck. In fact, the first stroke of luck I’ve had tonight. Park Lane please, cabby. Pink’s Hotel – do you know it? And fast if you wouldn’t mind.’ The stranger fiddled around, tugging open with nervous fingers the velvet evening bag she carried dangling from one wrist. She exclaimed with frustration as a handful of coins fell clinking to the ground, and her thanks to the cabby, who scrambled on his knees to retrieve them in the dark, were embarrassed and voluble. Her discomfort increased when she caught sight of Lord Dedham’s legs reaching for the pavement. ‘Oh, frightfully sorry! Cabby – you already have a fare?’

‘Don’t worry, miss!’ Dedham’s reassuring voice boomed out. ‘Leaving, not entering. It takes a while to get my two old legs working in concert. You may drive straight on, cabby. As soon as I’ve disembarked my old carcass.’