[Transcriber Note: This etext was produced from Galaxy Science Fiction February 1959. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.] The seaplane cast its silhouette from aloft upon the blue Arabian Sea, left its white wake across the shallows, and taxied alongside the ancient stone jetty, clawing into the sandy bottom with its small fore and after anchors. Colonel Glinka stepped out upon the wing, carefully measured the distance to the