Without a word the boys slipped away. Mr. Hardy then placed on a round shelf nailed to the flagstaff, at about eight feet from the ground, a blue-light, fitting into a socket on the shelf. The shelf was made just so large that it threw a shadow over the top of the tower, so that those standing there were in comparative darkness, while everything around was in bright light. There, with a match in his hand to light the blue-light, he awaited the signal. It was a long time coming--so long that the pause grew painful, and every one in the house longed for the bursting of the coming storm. At last it came. A wild, long, savage yell from hundreds of throats rose on the still night air, and, confident as they were in their position, there was not one of the garrison but felt his blood grow cold at the appalling ferocity of the cry. Simultaneously there was a tremendous rush at the doors and windows, which tried the strength of frame and bar. Then, as they stood firm, came a rain of blows with hatchet and tomahawk. Then came a momentary pause of astonishment. The weapons, instead of splintering the wood, merely made deep dents, or glided off harmlessly. Then the blows redoubled, and then a bright light suddenly lit up the whole scene. As it did so, from every loophole a stream of fire poured out, repeated again and again. The guns, heavily loaded with buckshot, told with terrible effect upon the crowded mass of Indians around the windows, and the discharge of the four barrels from each of the three windows of the room at the back of the house, by Fitzgerald, Lopez, and Terence, for awhile cleared the assailants from that quarter. After the first yell of astonishment and rage, a perfect quiet succeeded to the din which had raged there, broken only by the ring of the ramrods, as the three men and their assistants hastily reloaded their guns, and then hurried to the front of the house, where their presence was urgently required. Knowing the tremendous rush there would be at the door, Charley and Hubert had posted themselves at its two loopholes, leaving the windows to take care of themselves for the present. The first rush was so tremendous that the door trembled on its posts, massive as it was; and the boys, thinking that it would come in, threw the weight of their bodies against it. Then with the failure of the first rush came the storm of blows; and the boys stood with their pistols leveled through the holes, waiting for the light which was to enable them to see their foes. As it came they fired together, and two Indians fell. Again and again they fired, until not an Indian remained standing opposite the fatal door. Then each took a window, for there was one at each side of the door, and these they held, rushing occasionally into the rooms on either side to check the assailants there.