And so she sat, quite still and expressionless, as the clock ticked on the mantelpiece. The windows of the dining room were open and the faintest of breezes wafted in, just enough to cause the candles to flicker fractionally from time to time. At length Louise rose from her seat and went to the window. Below lay a small courtyard and the scent of herbs drifted up to her. Beyond the wall of the courtyard lay open fields, now covered with tents and the crude bivouacs erected by the French soldiers. Their campfires spread across the landscape like a vast constellation of twinkling red stars.

‘An impressive sight, is it not?’

She gasped with surprise and whirled round, hand clutched to her throat. Napoleon had entered and trodden quietly across to the table, where he now stood behind her chair, hands resting on the seat back. He stared back at her, frankly appraising her looks. The Queen of Prussia was a slender woman with black hair and strong, almost masculine features. For all that there was a cold, ethereal beauty about her, Napoleon conceded. He smiled. ‘I am sorry. I did not mean to startle you.’

‘Really?’ She arched an eyebrow. ‘I rather think that was precisely what you meant to do.’

‘Oh? And why would I do that?’

‘You employ the same strategy off the battlefield as you do on it.You move quickly, achieve surprise and disconcert your enemy.’

‘But you are not my enemy. I do not make war on women, your majesty.’ Napoleon laughed. ‘But I admit that you have a good grasp of my method of waging war.’

‘It has been a hard lesson,’ she replied coldly.‘One which has cost the lives of many of our subjects.’

‘Well, the war is over, and our meal is about to begin. Please?’ Napoleon nodded to the chair she had been sitting on. After a slight pause, the Prussian Queen glided back across the room and sat down, allowing Napoleon to edge her chair a little closer to the table.Then he took his place opposite, flicked his napkin loose and laid it across his thighs. ‘I took the liberty of sending my chef to your quarters to discover what food appeals to your palate. How is your accommodation, by the way?’

‘It is as good as most we have had to endure for several months.’

Napoleon shrugged. ‘If your husband had come to terms after Jena you would still have the comforts of your palace in Berlin. But then, I imagine that you would not let your husband come to terms. My ambassador to Berlin told me how much Frederick William depends upon your advice. Other men have even said that you are the true ruler of Prussia.’