He was but half way to it when a bright light streamed over him, and glancing backward he saw the officer turn the angle at the head of his men. Eager shouts told that they believed their victim to be trapped. It was a terrible crisis for the lad. Either he must check the enemy or abandon hope of escape, and he realized this in the flash of a second. He halted, faced about, and took quick aim with his pistol. "Look out, Major Langdon," cried a warning voice. "He's going to shoot." Bang! The thunderous report shook the building. The shattered lantern crashed to the floor, followed by total darkness, a yell of pain, and a volley of curses and threats. Amid the drifting smoke Nathan darted on to the window, threw up the sash, and let it fall with a clatter as he vaulted safely down upon the low roof of a shed. He was just in time. Crack! crack! crack!--bullets whistled overhead, and broken glass and splinters showered about him as he half tumbled, half climbed to the ground. In a trice he was through the stable-yard and over a wall into Third Street, across that deserted thoroughfare, and speeding through a dark and narrow lane in the direction of the Delaware River. There was dull shouting and outcry behind Nathan as he ran on, still clutching the empty pistol, and keeping a keen watch right and left; but he heard no close pursuit, and there were no dwelling-houses on the lane to imperil his present safety. "I'm going the wrong way," he said to himself, "but I daren't turn now. I hope I didn't kill that British officer--I never shot at any one before, and I hated to do it. One of the soldiers called him Major Langdon--why, that's the man who is going to put Godfrey on his staff, and the same that the London law clerk was inquiring about. Well, if I killed him I'm not to blame. It was in self-defense, and for my country's sake. If I'm caught they'll surely hang me--but I'm not going to be caught. These dispatches," feeling to make sure he had the precious packet, "must be saved from the enemy, and it won't be my fault if I don't deliver them at Valley Forge before morning." The plucky lad had now reached Second Street, and finding no one in sight, he turned up-town on a rapid walk. He had passed Market Street and was near Arch when he heard faint shouts, and looking back he saw a group of dark figures in pursuit. "They've tracked me clear from the tavern," he muttered, "and it won't be easy to give them the slip." He began to run now, with the hue and cry swelling behind him. He did not dare to turn into Arch Street, seeing people moving here and there in both directions; so he continued up Second, slinking along in the shadow of the houses. From a doorstep across the way some one shouted, and the human blood-hounds down the street caught up the cry with hoarse energy. The rush of many feet rang on the night air, and the tumult was rapidly spreading to the more remote quarters of the town.