Inside the fort the lights were lit, and through the windows came the sounds of violins. The officers of the post had given a ball, and the mirth-loving creoles, young men and girls, were dancing and revelling within, while the sentinels had left their posts. One of his captives showed Clark a postern-gate by the river-side, and through this he entered the fort, having placed his men round about at the entrance. Advancing to the great hall where the revel was held, he leaned silently with folded arms against the door-post, looking at the dancers. An Indian, lying on the floor of the entry, gazed intently on the stranger's face as the light from the torches within flickered across it, and suddenly sprang to his feet uttering the unearthly war-whoop. Instantly the dancing ceased; the women screamed, while the men ran towards the door. But Clark, standing unmoved and with unchanged face, grimly bade them continue their dancing, but to remember that they now danced under Virginia and not Great Britain. [Footnote: Memoir of Major E. Denny, by Wm. H. Denny, p. 217. In "Record of the Court of Upland and Military Journal of Major E. Denny," Philadelphia, 1860 (Historical Society of Penn.). The story was told to Major Denny by Clark himself, some time in '87 or '88; in process of repetition it evidently became twisted, and, as related by Denny, there are some very manifest inaccuracies, but there seems no reason to reject it entirely.] At the same time his men burst into the fort, and seized the French officers, including the commandant, Rocheblave. [Footnote: It is worth noting that these Illinois French, and most of the Indians with whom the French fur traders came in contact, called the Americans "Bostonnais." (In fact the fur traders have taught this name to the northern tribes right across to the Pacific. While hunting in the Selkirk Mountains last fall, the Kootenai Indian who was with me always described me as a "Boston man.") Similarly the Indians round the upper Ohio and thence southward often called the backwoodsmen "Virginians." In each case the French and Indians adopted the name of their leading and most inveterate enemies as the title by which to call all of them.]