"Can't you guess?" answered Oscar. "Look, Matt, I'll tear over to the tailor shop for you-you can't do that and shave, too, not in fifteen minutes."

"You're a lifesaver, Oz!"

P.R.S. Aes Triplex blasted from Moon Base thirteen hours later in a trajectory intended to produce an elliptical orbit with its far end in the asteroid belt. Her orders were to search for the missing P.R.S. Pathfinder. The

Pathfinder had been engaged in radar-charting a sector of the asteroid belt for the Uranographic Office of the Patrol. Her mission had taken her beyond the range of ship-type radio; nevertheless she should have reported in by radio nearly six months earlier, at which time she should have been approaching conjunction with Mars. But Deimos Station, around Mars, had been unable to raise the Pathfinder; she was presumed lost.

The possible locations of the Pathfinder were a moving zone in space, defined by using geometry, ballistics, the characteristics of the ship, her mission, and her last reported location, course, and speed. This zone was divided into four sectors and the Aes Triplex was to search one sector while three other Patrol vessels covered the other sectors. The joint task was designated "Operation Samaritan" but each ship was independent as they necessarily would be too far apart to be commanded as a task force.

While searching, the rescue vessels would continue the Pathfinder's mission of charting the space drift that clutters the asteroid belt.

In addition to the commanding officer and the three cadets, the company of the Aes Triplex included Commander Hartley Miller, executive officer and astrogator, Lieutenant Novak, Chief Engineer, Lieutenant Thurlow, Bomb Officer, Lieutenant Brunn, Communications Officer, Sublieutenants Peters, Gomez, and Cleary, assistant engineer and communications watch officers respectively, and

Or. Pickering, ship's surgeon, along to care for survivors-if my were found.

The ship contained no marines, unless one chooses to count Dr. Pickering, who was technically a staff corps member of the marines rather than a member of the Patrol. this very task in the ship would be performed by the officers or cadets. Time was when the lowliest subaltern in an infantry regiment had his personal servant, but servants are so expensive a luxury in terms of fuel and space and food in lift through millions of miles of space. Besides that, Mime few manual tasks are a welcome relief from boredom in the endless monotony of space; even the undesirable duty of cleaning the refresher was taken in turn by the entire ship's company, in accordance with custom, except for the Captain, the Executive Officer, and the Surgeon.

Captain Yancey assigned Lieutenant Thurlow as training officer who in turn set up the jobs of assistant astrogator, junior communication watch officer, junior assistant engineer, and assistant bomb officer and arranged a schedule of rotation among these-quite unnecessary-positions. It was also Mr. Thurlow's job to see to it that Matt, Oscar, and Tex made intensive use of the one study projector available to the cadets.