So the guard marched away, dragging a reproachful and tear-stained Quivven with them. Three leather-clad Vairkings remained, and these shortly were joined by a fourth. Cabot half consciously noticed this new arrival, but paid little attention in the bustle of his preparations. The tapestries which were to serve in place of fire-worm fur to swathe himself and Doggo in their flight across the boiling seas were rearranged so as to take up less room. The goggles, which he had brought from the laboratory, were packed with them. The bombs and rifle ammunition were placed in handy positions. A small quantity of provisions were added. Everything was lashed down. Then Myles drew Doggo to one side for a conference and wrote: “I plan first to attack those Formians and Roies who are besieging Theoph’s palace; then to dispose of as many as possible of the scout planes. How many of these are there?” “We had seven airships in our city in the south,” wrote Doggo in reply. “This is one of them here. One is probably temporarily disabled by the shots which you fired in the laboratory yard. That should leave five.” “Can we fight five?” “Most assuredly,” Doggo wrote, agitating his antennae eagerly. “Then let’s go!” wrote Cabot. With a quick take-off diagonally down the inclosure, the huge bombing plane rose slowly into the air amid shouts from the Vairking soldiers below. It was now broad daylight. Myles glanced over the rail, and noted that there were now only three leather-clad warriors. He vaguely wondered what had become of the fourth, but it was too late to inquire. Up through the swirling sparks and smoke they rose, up, up, until they could get a bird’s-eye view of the whole city of Vairkingi. There, on a slight eminence in the center, stood the palace and inclosures of the white-furred king, its walls manned by leather-clad Vairking warriors, surrounded by savage besiegers. The flames had not yet reached that part of the city, and with a change in the wind, appeared to be sweeping past it. As Myles and Doggo circled the palace they noted that practically all the ant-men within sight were massing in a side street, evidently preparing for an assault. How convenient! Myles took the levers and swooped low, while Doggo deluged his fellow countrymen with bombs. When their sudden attack was over, fully half of the Formian menace to the city had been wiped out. Now for the scout planes. These, five in number, could be seen circling the outskirts of the city. The two friends were able to approach one of these without being suspected of being an enemy. Before its flyers realized the peril it had gone down in flames from one well-placed bomb. The other four scout planes at once realized that their own countryman, Doggo, had returned to do them battle, and accordingly converged upon him. Again the two friends exchanged places. And then there took place one of the finest examples of aerial warfare which the earth-man had ever witnessed.