Harrison was vigilant. He determined to watch the river with a party of scouts, and in the meantime to muster the militia and make a show of military force. He was convinced that if his wily antagonist found him off his guard that he would not hesitate to "pick a quarrel," and launch a general attack. The Governor's letter to the war department of July 10th, 1811, is interesting. "With them (i. e., the Indians) the surprise of an enemy bestows more eclat upon a warrior than the most brilliant success obtained by other means. Tecumseh has taken for his model the celebrated Pontiac and I am persuaded that he will bear a favorable comparison in every respect with that far famed warrior. If it is his object to begin with the surprise of this place, it is impossible that a more favorable situation could have been chosen than the one he occupies. It is just so far off as to be removed from our immediate observation, and yet so near as to enable him to strike us when the water is high in twenty-four hours, and even when it is low their light canoes will come fully as fast as the journey could be performed on horseback. The situation is in other respects admirable for the purposes for which he has chosen it. It is nearly central with regard to the tribes which he wishes to unite. The water communication with Lake Erie by means of the Wabash and Miami, with Lake Michigan and the Illinois by the Tippecanoe, is a great convenience. It is immediately in the center of the back line of that fine country which he wishes to prevent us from settling, and above all, he has immediately in his rear a country that has been but little explored, consisting principally of barren thickets, interspersed with swamps and lakes, into which our cavalry could not penetrate, and our infantry only by slow and laborious marches." Tecumseh did not keep his word. At the very time he was promising Wilson to bring only a few men he was sending word in every direction to collect his people. On the twenty-fourth of July he was within a few miles' march of Vincennes with one hundred twenty or thirty warriors, and the Weas under Lapoussier were coming on in the rear. The people were greatly alarmed and irritated and there was danger of their firing on the savage bands. Brouillette was kept in the saddle riding from camp to camp. On the twenty-fifth, Harrison sent Captain Wilson twenty miles up the river to demand of Tecumseh his reason for approaching the town with so large a force, despite the Governor's injunction and his own previous agreement. The savage after some equivocation, said that he was only attended by twenty-four men and that the remainder had come "on their own accord." Parties of savages were then lurking about the settlements on every hand, and "upwards of one hundred were within two miles of the town northwest of the Wabash." Some sinister design was moving the chieftain's mind.