They shot closer and lower and he saw that the buildings were obviously green to lend them a certain protective coloration similar to that of the green jungles around them. The tower with its surmounting cage puzzled him though, but before he could ask Sarja concerning it his answer came in a different way. A long metal tube poked slowly out of the cage on the tower's top and sent a hail of force-shells flicking around them. "They're firing on us!" Norman cried. "This can't be your city!" "They see our black boat!" Sarja exclaimed. "They think we're Rala raiders and unless we let them know they'll shoot us out of the air! Stand up--wave to them--!" Both Norman and Sarja sprang to their feet and waved wildly to those in the tower-cage, their flying-boat drifting slowly forward. Instantly the force-shells ceased to hail toward them, and as they moved nearer a sirenlike signal broke from the cage. At once scores of flying-boats like their own, but glittering metal instead of black, shot up from the city where they had lain until now, and surrounded them. As Sarja called in his own tongue to them the green men on the surrounding boats broke into resounding cries. They shot down toward the city, Norman gazing tensely. Great crowds of green men in their dark tunics had swarmed out into its streets with the passing of the alarm, and their craft and the others came to rest in an open square that was the juncture of several streets. The green men that crowded excitedly about Norman and Sarja gave way to a half-dozen hurrying into the square from the greatest of the buildings facing on it. All but one were green men like the others. But that one--the laughing-eyed tanned face--the worn brown clothing, the curious huge steps with which he came--Norman's heart leapt. "Fellows!" "Great God--Norman!" The other's face was thunderstruck. "Norman--how by all that's holy did you get here?" * * * * * Norman, mind and body strained to the breaking point, was incoherent. "We guessed how you'd gone--the second satellite, Fellows--Hackett and I came after you--taken to that frog-city--" As Norman choked the tale, Fellows' face was a study. And when it was finished he swallowed, and gripped Norman's hand viselike. "And you and Hackett figured it out and came after me--took that risk? Crazy, both of you. Crazy--" "Fellows, Hackett's still there, if he's alive! In the Rala city!" Fellows' voice was grim, quick. "We'll have him out. Norman, if he still lives. And living or dead, the Ralas will pay soon for this and for all they've done upon this world in ages. Their time nears--yes."