Presently there was a sound of motors. Cars without lights, many of them, were racing along the riverside highway from downtown Pittsburgh. They rushed over the bridge, toward the distant uproar of shooting. "That decoyed them out," Lanterman said. He gave orders, quick and fierce. "Allerman, you and Jim take your boats in here. Block the bridges, so they can't get back in a hurry." Two skiffloads of men darted toward the dim shore. And the rest, with Lanterman's skiff leading, moved under oars down along the riverside. Now Wales glimpsed lights--a few dim, scattered gleams. With a shock, he saw big, black towers against the stars, and realized they were the skyscrapers of downtown Pittsburgh. Their skiffs shot in, bumped and stopped. The men piled out, onto a cobbled levee that slanted up from the river. Lanterman's voice rang out. "We've got 'em cold, with most of their men chasing Harry across the river! Come on! But remember--don't shoot anyone unless they show fight! Most of 'em'll join us, later." The dark figures of the men, gun-barrels glinting in the starlight, went up the levee in a stumbling rush. Somewhere ahead, a voice yelled in alarm. Wales, behind Lanterman, felt more than ever caught in a nightmare. These men, ignorant in their unbelief, battling for an empty city upon a world toward which doom was coming--it seemed a terrible dream from which he could not wake. CHAPTER IV They ran forward and were suddenly in a narrow street of tall, old business buildings. It was a gut of darkness in which the men stumbled and jostled each other, and now they heard an alarm-siren ahead. Wales had no desire at all to become embroiled in this senseless struggle for an empty city. But with Lanterman just ahead, and men all around, he dared not try to slip away. Some of them were surely watching him. They debouched into a broader street. A few blocks away along this wider avenue, a searchlight suddenly went into action, lighting up shop windows and building-fronts for a quarter-mile, and half-dazzling the dark, running figures of Lanterman's men. Instantly shots burst forth from beyond the searchlight. Bullets whined and whanged off stone-work, and there was the silvery crash of shattered plate-glass. "Get back in here!" Lanterman yelled, and his men sucked back into the dark shelter of the narrower way. One of them was holding his shoulder, and sobbing, "Damn them, they hit me--" Wales, pressing close against a stone facade, looked out into the eery brilliance ahead and recognized it as Liberty Avenue. He saw, across it, a shopwindow in which impeccably dressed dummies looked out as though in wide-eyed amazement at what was going on. Lanterman paid no attention to the wounded man. "They're up in that big hotel near the Post Office," he said quickly. "Can't be many men left here--but we got to get to them fast, before the others hear and start back." He told one of the farmer-men,