filled with the troops of the victorious allies. The Russians were in the Champs-Élysees, the Prussians in the Tuileries, and there were even a few British troops bivouacking in the great square where Louis XVI’s head had been cut off. A prurient curiosity made Frederickson pay a precious sou to see the Souricière, the ‘mousetrap’, which was the undercroft of the Conciergerie where the guillotine’s victims had been given their ‘toilette’ before climbing into the tumbrils. The ‘toilette’ was a haircut that exposed the neck’s nape so that the blade would not be obstructed, and Frederickson’s guide, a cheerful man, claimed that half Paris’s mattresses were stuffed with the tresses of dead aristocrats. Frederickson probed the thin mattress in his cheap lodging house and was disappointed to find nothing but horsehair. The owner of the house believed Herr Friedrich to be a veteran of the Emperor’s armies; one of the many Germans who had fought for France.
On the day after his visit to the Conciergerie, Frederickson met an Austrian cavalry Sergeant’s wife who had fled from her husband and now sought a protector. For a week Frederickson thought he had successfully blotted Lucille out of his mind, but then the Austrian woman went back to her husband and Frederickson again felt the pain of rejection. He tried to exorcise it by walking to Versailles where he drowned himself in the château’s magnificence. He bought a new sketchbook and for three days he feverishly sketched the great palace, but all the while, though he tried to deny it to himself, he was thinking of Madame Castineau. At night he would try to draw her face until, disgusted with his obession, he tore up the sketchbook and walked back to Paris to begin his search for Pierre Ducos.
The records of the Imperial Army were still held in the Invalides, guarded there by a sour-faced archivist who admitted that no one had informed him what he was expected to do with the imperial records. ‘No one is interested any more.’
‘I am,’ Frederickson said, and at the cost of a few hours sympathetic listening to the archivist, he was given access to the precious files. After three weeks Frederickson had still not found Pierre Ducos. He had found much else that was fascinating, scandals that could waste hours of time to explore, but there was no file on Ducos. The man might as well never have existed.
The archivist, sensing a fellow bitterness in Herr Friedrich’s soul, became enthusiastic about the search, which he believed was for Frederickson’s former commanding officer. ‘Have you written to the other officers you and he served with?’
‘I tried that,’ Frederickson said, but then a stray idea flickered into his thoughts. It was an idea so tenuous that he almost ignored it, but, because the archivist was breathing into his face, and because the man had lunched well on garlic soup, Frederickson admitted there was one officer he had not contacted. ‘A Commandant Lassan,’ he said, ‘I think he commanded a coastal fort. I didn’t know him, but Major Ducos often talked of him.’
‘Let’s look for him. Lassan, you said?’
The idea was very nebulous. Frederickson could now wander freely among the file shelves, but, before Napoleon’s surrender, regulations had strictly controlled access to the imperial files. Then, any officer drawing a file had his name, and that day’s date, written on the file’s cover, and Frederickson had been wondering whether Ducos had discovered Lassan through these dusty records and, if so, whether the dead man’s file would show Ducos’s signature on its cover. If it did – the idea was very tenuous – the archivist might remember the man who had drawn that file.
‘It shows an address in Normandy.’ The archivist had discovered Lassan’s slim file. ‘The Château Lassan. I doubt that’s one of the great houses of France. I’ve never heard of it.’
‘May I see?’ Frederickson took the file and felt the familiar pang as he saw Lucille’s address. Then he looked at the file’s cover. There was only one signature, that of a Colonel Joliot, but the date beside Joliot’s name showed that this file had been consulted just two weeks before Lassan’s murder. The coincidence was too fortuitous, so, rejecting coincidence, ‘Colonel Joliot’ had to be Pierre Ducos. ‘Joliot,’ Frederickson said, ‘that sounds a familiar name?’
‘It would be if you wore spectacles!’ The archivist touched an inky finger to his own eyeglasses. ‘The Joliot brothers are the most reputable spectacle makers in Paris.’
Ducos wore spectacles. Frederickson recalled Sharpe describing the Frenchman’s livid anger when Sharpe had once broken those precious spectacles in Spain. Had Ducos consulted this file, then scribbled a familiar name on its cover as a disguise for his own identity? Frederickson had to hide his sudden excitement, which was that of a hunter sighting his prey. ‘Where would I find the Joliot brothers?’
‘They’re behind the Palais de Chaillot, Capitaine Friedrich, but I assure you that neither of them is a colonel!’ The archivist tapped the signature.
‘I need to see a spectacle-maker anyway,’ Frederickson said. ‘My eye, Monsieur, is sometimes made tired by reading.’
‘It is age, mon Capitaine, nothing but age.’
That diagnosis was echoed by Jules Joliot who greeted Captain Friedrich in his elegant shop behind the Palace of Chaillot. Joliot wore a tiny gold bee in his lapel as a discreet emblem of his loyalty to the Emperor. ‘All eyes grow tired with age,’ he told Frederickson, ‘even the Emperor is forced to use reading glasses, so you must not think it any disgrace. And, Capitaine, you will forgive me, but your one eye is forced to do the labour of two so, alas, it will tire more easily. But you have come to the best establishment in Paris!’ Monsieur Joliot boasted that his workshops had despatched spyglasses to Moscow, monocles to Madrid, and eyeglasses to captured French officers in London and Edinburgh. Alas, he said, the war’s ending had been bad for business. Combat was hard on fine lenses.
Frederickson asked why a captured officer would send for spectacles from Paris when, surely, it would have been swifter to buy replacement glasses in London. ‘Not if he wanted fine workmanship,’ Joliot said haughtily. ‘Come!’ He led Frederickson past cabinets of line telescopes and opened a drawer in which he kept some of his rivals’ products. ‘These are spectacles from London. You perceive the distortion at the edge of the lens?’
‘But if an officer loses his spectacles,’ Frederickson insisted, ‘how would you know what to send him as a replacement?’
Joliot proudly showed his visitor a vast chest of shallow tray-like drawers which each held hundreds of delicate plaster discs. Joliot handled the fragile discs with immense care. Each human eye, Joliot said, was subtly different, and great experimentation was needed to find a lens which corrected any one eye’s unique deficiency. Once that peculiar lens was discovered it was copied exactly in plaster, and the casts were kept in these drawers. ‘This one is an eyeglass for Marshal Ney, this one for the left eye of Admiral Suffren, and here,’ Joliot could not resist the boast, ‘are the Emperor’s reading glasses.’ He opened a velvet lined box in which two plaster discs rested. He explained that by using the most delicate gauges and calipers, a skilled workman could grind a lens to the exact same shape as one of the plaster discs. ‘No other firm is as sophisticated as we, but, alas, with the war’s ending, we are sadly underemployed. We shall soon have to begin making cheap magnifying glasses for the amusement of children and women.’
Frederickson was impressed, but Frederickson had no way of discovering that the Joliot Brothers had never ground a lens in their lives, or that they simply supplied the same Venetian lens that every other spectacle-maker used. The plaster discs, with their promise of scientific accuracy, were nothing but a marvellous device for improving sales.
‘Now,’ Joliot said, ‘we must experiment upon your tired eye, Captain. You will take a seat, perhaps?’
Frederickson had no wish to be experimented on. ‘I have a friend,’ he said, ‘whose spectacles came from your shop, and I noticed that his lens suited my eye to perfection.’
‘His name?’
‘Pierre Ducos. Major Pierre Ducos.’
‘Let us see.’ Joliot seemed somewhat disappointed at not being able to dazzle Frederickson with his array of experimental