"You are not charged with the mission of these other ships; your orders are to investigate their disappearance. The course, together with the official patrol orders, I shall hand you presently, but with them go verbal orders. "You are to lay and keep the course designated, which will take you well out of the beaten path to a small world which has not been explored, but which has been circumnavigated a number of times by various ships remaining just outside the atmospheric envelope, and found to be without evidence of intelligent habitation. In other words, without cities, roads, canals, or other evidence of human handiwork or civilization. * * * * * "I believe your instructions give you some of this information, but not all of it. This world, unnamed because of its uninhabited condition, is charted only as L-472. Your larger charts will show it, I am sure. The atmosphere is reported to be breatheable by inhabitants of Earth and other beings having the same general requirements. Vegetation is reported as dense, covering the five continents of the world to the edges of the northern and southern polar caps, which are small. Topographically, the country is rugged in the extreme, with many peaks, apparently volcanic, but now inactive or extinct, on all of its five large continents." "And am I to land there, sir?" I asked eagerly. "Your orders are very specific upon that point," said Commander Jamison. "You are not to land until you have carefully and thoroughly reconnoitered from above, at low altitude. You will exercise every possible precaution. Your specific purpose is simply this: to determine, if possible, the fate of the other two ships, and report your findings at once. The Chiefs of the Service will then consider the matter, and take whatever action may seem advisable to them." Jamison rose to his feet and thrust out his hand in Earth's fine old salute of farewell. "I must be going, Hanson," he said. "I wish this patrol were mine instead of yours. You are a young man for such a responsibility." "But," I replied, with the glowing confidence of youth, "I have the advantage of having served under Commander Jamison!" * * * * * He smiled as we shook again, and shook his head. "Discretion can be learned only by experience," he said. "But I wish you success, Hanson; on this undertaking, and on many others. Supplies are on their way now; the crew will return from leave within the hour. A young Zenian, name of Dival, I believe, is detailed to accompany you as scientific observer--purely unofficial capacity, of course. He has been ordered to report to you at once. You are to depart as soon as feasible: you know what that means. I believe that's all--Oh, yes! I had almost forgotten. "Here, in this envelope, are your orders and your course, as well as all available data on L-472. In this little casket is--your comet, Hanson. I know you will wear it with honor!"