The prisoners were sent for, and were informed by Don Louis himself of their approaching end. At first they could not believe that he was in earnest, for such a proceeding was so utterly opposed to the spirit of the times that it seemed impossible to them. Finding that he was in earnest they warned him of the eternal stain which such a deed would bring upon his name. The Spaniard, however, was unmoved either by their words or by the entreaties of the French nobles but told them that he would give them a few hours to prepare for death, and that they should be executed in sight of the walls after the usual dinner hour of the army. In those days sieges were not conducted in the strict manner in which they are at present, and non-combatants passed without difficulty to and fro between town and camp. The news, therefore, of what was intended speedily reached the garrison, whom it filled with indignation and horror. A council was immediately called, and Sir Walter Manny proposed a plan, which was instantly adopted. Without loss of time Almeric de Clisson issued forth from the great gate of Hennebon, accompanied by 300 men-at-arms and 1000 archers. The latter took post at once along the edge of the ditches. The men-at-arms rode straight for the enemy's camp, which was undefended, the whole army being within their tents at dinner. Dashing into their midst the English and Breton men-at-arms began to overthrow the tents and spear all that were in them. Not knowing the extent of the danger or the smallness of the attacking force, the French knights sprang up from table, mounted, and rode to encounter the assailants. For some time these maintained their ground against all assaults until, finding that the whole army was upon them, Almeric de Clisson gave order for his troop to retire slowly upon the town. Fighting every step of the ground and resisting obstinately the repeated onslaught of the French, Clisson approached the gate. Here he was joined by the archers, who with bent bows prepared to resist the advance of the French. As it appeared that the garrison were prepared to give battle outside the walls, the whole French army prepared to move against them. In the meantime Sir Walter Manny, with 100 men-at-arms and 500 horse archers, issued by a sally-port on the other side of the town, and with all speed rode round to the rear of the French camp. There he found none to oppose him save servants and camp-followers, and making his way straight to the tent of Charles of Blois, where the two knights were confined, he soon freed them from their bonds. They were mounted without wasting a moment's time upon two spare horses, and turning again the whole party rode back towards Hennebon, and had reached the postern gate before the fugitives from the camp reached the French commanders and told them what had happened.