In the meantime, Fortune had not entirely abandoned the Bourbons. That part of the Buonapartist conspiracy which was to have been executed in the north was discovered and disconcerted. Lefebvre Desnouettes, discreditably known in England by his breach of parole, with the two Generals Lallemand, were the agents in this plot. On the 10th March, Lefebvre marched forward his regiment to join Buonaparte; but the officers having discovered his purpose, he was obliged to make his escape from the arrest with which he was threatened. The two Lallemands put the garrison of Lisle, to the number of 6000 men, in motion, by means of forged orders, declaring there was an insurrection in Paris. But Maréchal Mortier, meeting the troops on the march, detected and defeated the conspiracy, by which, had it taken effect, the King and Royal Family must have been made prisoners. The Lallemands were taken, and to have executed them on the spot as traitors, might have struck a wholesome terror into such officers as still hesitated; but the ministers of the King did not possess energy enough for such a crisis.[101] The progress of Buonaparte, in the meantime, was uninterrupted. It was in vain that, at Lyons, Monsieur and the Duke of Orleans, with the assistance of the advice and influence of Maréchal Macdonald, endeavoured to retain the troops in their duty, and the inhabitants in their allegiance to the King. The latter, chiefly manufacturers, afraid of being undersold by those of England in their own market, shouted openly, "_Vive l'Empereur!_" The troops of the line remained silent and gloomy. "How will your soldiers behave?" said Monsieur to the colonel of the 13th Dragoons. The colonel referred him to the men themselves. They answered candidly, that they would fight for Napoleon alone. Monsieur dismounted, and addressed the soldiers individually. To one veteran, covered with scars, and decorated with medals, the prince said, "A brave soldier like you, at least, will cry, _Vive le Roi!_"--"You deceive yourself," answered the soldier. "No one here will fight against his father--I will cry, _Vive Napoleon!_" The efforts of Macdonald were equally vain. He endeavoured to move two battalions to oppose the entry of Buonaparte's advanced guard. So soon as the troops came in presence of each other, they broke their ranks, and mingled together in the general cry of "_Vive l'Empereur!_" Macdonald would have been made prisoner, but the forces whom he had just commanded would not permit this consummation of revolt. Monsieur was obliged to escape from Lyons, almost alone. The guard of honour formed by the citizens, to attend the person of the second of the Bourbon family, offered their services to Napoleon; but he refused them with contempt, while he sent a cross of honour to a single dragoon, who had the loyalty and devotion to attend Monsieur in his retreat.