So much had happened since they first saw that lonely sea! It seemed as though much more than a week had elapsed. Savissa and its Golden Amazons ... the arrow tipped tower of Rupin-Sang ... the Scaly hordes of Vaaka and the dread palace of the insane Lansa who had once been an Earthly officer ... the secret and water-locked halls of Luralla where The outlaws of Giri dwelt--many scenes went through Gerry Norton's mind. He seemed to have aged ten years since the day he brought the _Viking_ down through the cloud screen. Well--the immediate problem was to get some suitable metal to repair the smashed helicopters. The _Viking_ might possibly get up into the air with the power of her rockets alone if they beached her on a sloping shore with her nose upward, but she could never come down safely without helicopters. "I'll hold her on this course a while," Gerry said. "In the morning we can strike over and try to pick up the frontiers of Savissa." It was just at dusk that they saw white towers against the sky. They rose out of the sea as Gerry turned the _Viking's_ blunt nose toward them--the mighty battlements of a vast city. Closana, who was standing on deck beside him at the time, rested her hands on the rail and stared in utter amazement. "But it isn't possible, Geree!" she gasped, "there isn't any civilization out there on the islands of the Great Sea!" "Could it be a mirage?" he suggested. "A reflection of some Savissan city on the mainland?" "No." The girl shook her head. "There are no cities of that sort in any of these lands. Geree--there is something strange here. I do not like it. There _cannot_ be any city ahead of us there!" "But there it is!" Gerry said grimly. "We can't all be seeing things. We'll go closer and get a better look." It was sunset, the unspectacular Venusian sunset which was simply a swift lessening of the golden glow from the cloud veiled sky above. Lights were gleaming from most of the tall buildings of the towering city as the _Viking_ drove toward it through a quiet sea. Sea birds swooped low about the ship's wake. The watchers on deck could see the low shore line of the island on which the city was built. Then they heard distant bells, pleasant bells that seemed to be chiming a farewell to the day and a welcome to the night. And then a red light flashed on top of the tallest building and in an instant the entire city vanished. * * * * * One minute the strange city had been clearly visible before them, its graceful towers agleam with lights as they notched the sky. The next instant the whole place was gone. There was nothing in sight at all but a low shoreline. It was as though a thick veil of concealing mist had been suddenly drawn across between the ship and the city. Only--the air was clear and without a trace of mist. Gerry walked across to the open dome of the upper control room.