Meanwhile the Dauphin was marching on Paris: Marcel seized the Louvre and set 3000 workmen to fortify the city. In less than a year the greater part of the northern walls, with gates, bastilles and fosses, was completed--the greatest feat, says Froissart, the provost ever achieved. A citizen army was raised, whose hoods of red and blue, the colours of Paris, distinguished them from the royal sympathisers. Marcel turned for support to the _Jacques_, and on their suppression essayed to win over Charles of Navarre. On 30th November 1357, Charles stood on the royal stage on the walls of the abbey of St. Germain des Pres, whence the kings of France were wont to witness the judicial combats in the Pres aux Clercs, and addressed an assembly of 10,000 citizens. _Moult longuement_ he sermonised, says the _Grandes Chroniques_, so that dinner was over in Paris before he finished. After yet another harangue at the Maison aux Piliers on 15th June 1358, he was acclaimed by people with "Navarre! Navarre!" and elected the Captain of Paris. An obscure period of plot and counterplot followed which culminated in the ruin of Marcel and his followers. Froissart accuses the provost of a treacherous intent to open the gates of St. Honore and of St. Antoine to Navarre's English mercenaries at midnight on 31st July, and gives a dramatic story of the discovery of the plot and slaying of the provost by Jean Maillart, his friend and associate. We supplement his version from the Chronicle of St. Denis: on the last day of July, Marcel and his suite repaired to the bastille of St. Denis and ordered the guards to surrender the keys to Charles of Navarre's treasurer. Maillart, who had been won over by the Dauphin, had preceded him. The guard refused to hand over the keys and an angry altercation ensued between the former friends. Maillart mounted horse, seized a royal banner, sped to the Halles and to the cry of "Montjoie St. Denis!" called the royal partizans to arms: a similar appeal was made by Pepin des Essards. Meanwhile Marcel had reached the bastille of St. Antoine, where he was met by Maillart and the royal partizans. "Stephen, Stephen!" cried the latter, "what dost thou here at this hour?" "I am here," answered the provost, "to guard the city whose governor I am." "_Par Dieu_," retorted Maillart, "thou art here for no good," and turning to his followers, said, "Behold the keys which he holds to the destruction of the city." Each gave the other the lie. "Good people," protested Marcel, "why would you do me ill? All I wrought was for your good as well as mine." Maillart for answer smote at him, crying, "Traitor, _a mort, a mort_!" There was a stubborn fight, and Maillart felled the provost by a blow with his axe; six of the provost's companions were slain, and the remainder haled to prison. Next day the Dauphin entered Paris in triumph, and the popular leaders were executed on the Place de Greve. The provost's body was dragged to the court of the church of St.