Napoleon pressed his lips together briefly. ‘It is enough for them to know that I am aware of their treachery, and that I can have them shot or thrown in prison at the click of my fingers. Besides, they serve as an example to the wider public that nothing escapes the Emperor’s eye.’

Lucien was quiet for a moment before he spoke again. ‘I still think you should have disposed of them. In time they are sure to be amongst your bitterest enemies.’

‘Perhaps. In time.When that happens I will deal with it. At present I cannot bring myself to destroy them.’ Napoleon looked up at his brother with a wistful smile. ‘Call it a sentimental streak, but Talleyrand, Fouché and I have shared much over the years. Our fates are bound together, for better or worse.’

‘Forgive me, brother, but that is madness. You cannot afford to indulge yourself in such obligations.You are the Emperor of France. If you fall then France will be crushed by her enemies.You are not free to place some misguided sense of mercy above the nation’s interests.’

‘Nevertheless, I will,’ Napoleon replied firmly, and then frowned.‘No more of this, Lucien. There are other matters to attend to. Far more important matters. There is no longer any doubt that Austria means to make war against us. Our ambassador reports that the court of Emperor Francis is openly hostile. Our agents suggest that the Austrian army numbers well over three hundred thousand men. It seems that they have not forgotten, or forgiven, the shame they incurred at Austerlitz. They mean to have their revenge and crush me utterly.’ He shook his head sadly. ‘The thing is, they have never been in a better position to do it. I have one hundred and twenty thousand men on the Rhine. If we scour the garrisons in the German states and in France we might raise another eighty thousand. We are also short of officers, although we might make the numbers up by recalling those who have retired, or promoting sergeants.’ He sighed wearily. ‘The truth is that time is against us.’

‘Time is always against us,’ said Lucien. ‘All that a man can do is acquit himself as well as he may, and not waste the smallest span of his life bemoaning the fact.’