It was not long before the British authorities at Detroit were informed of the change in the situation at Kaskaskia and Vincennes, and at once began preparations to recover the lost ground. At this time Colonel Henry Hamilton, of the British army, was Lieutenant-Governor of Detroit. He assembled a force of five hundred men--regulars, militia and Indians--and started for Vincennes. Captain Helm did not learn of the approach of this force until, about the middle of December, it was within three miles of the fort. His garrison consisted of one American and a few inhabitants of Vincennes. Seeing that it would be impossible to defend the fort, the inhabitants quietly dispersed to their homes, leaving Helm and his one American in the fort. Though he knew he could not successfully defend the fort, Helm put on a bold front, loaded his two cannon, and placed himself at one and his solitary soldier at the other. To Hamilton's demand for the surrender of the post, Helm replied that no man could enter the post until the terms of surrender were made known. Being promised the honors of war, he surrendered himself and his one man, to the chagrin of Hamilton, on discovering the size of the garrison. The approach of the British had been so sudden that Helm was not able to dispatch a messenger to Clark, who in consequence remained for several weeks in ignorance of the change in the situation. The last word he had received from Helm was a request for more supplies. At that time Francis Vigo, a merchant of St. Louis, happened to be in Kaskaskia. Loving the Americans and hating the British, he volunteered to go to Vincennes and make arrangements to furnish the garrison with supplies. Vigo started on his journey at once, but was captured by the British just before he reached Vincennes, and taken before Hamilton. To his demand for immediate release on the score that he was a citizen of St. Louis, Hamilton was deaf, until the Roman Catholic priest, heading a delegation of citizens, notified Hamilton that they would furnish no supplies for the garrison unless Vigo were released. Vigo was released, after promising against his will that "on his way to St. Louis he would do no act hostile to the British interest." He at once took a canoe and was rapidly paddled down the Wabash to the Ohio, then on to St. Louis. Keeping the letter of his pledge he did nothing hostile on his way to St. Louis, but on his arrival there he jumped from the boat to the land and then back into the boat, and pushed with all speed for Kaskaskia, where he told Clark of the condition of affairs.