And now The Shooting Starr's mighty motors hummed smoothly into a higher pitch, just heard, and Lucky felt the slight pressure of such backward drag as was not completely compensated for by the ion drive. The ship bounded outward into the far reaches of the Solar System, faster, faster, still faster…
And still Agent X maintained his lead, and The Shooting Starr gained too slowly. With the main body of the asteroid belt far behind, Lucky said, "It looks bad, Bigman."
Bigman looked surprised. "Well get him, Lucky."
"It's where he's heading. I was sure it would be a Sirian mother-ship waiting to pick him up and make the Jump homeward. But such a ship would be either way out of the plane of the Ecliptic or it would be hidden in the asteroid belt. Either way, it could count on not being detected. But Agent X stays in the Ecliptic and heads beyond the asteroids."
"Maybe he's just trying to shake us before he heads for the ship."
"Maybe," said Lucky, "and maybe the Sirians have a base on the outer planets."
"Come on, Lucky." The small Martian cackled his derision. "Right under our noses?"
"It's hard to see under our noses sometimes. His course is aimed right at Saturn."
Bigman checked the ship's computers, which were keeping constant tab on the other's course. He said, "Look, Lucky, the cobber is still on a ballistic course. He hasn't touched his motors in twenty million miles. Maybe he's out of power."
"And maybe he's saving his power for maneuvers in the Saturnian system. There'll be a heavy gravitational drag there. At least I hope he's saving power. Great Galaxy, I hope he is." Lucky's lean, handsome face was grave now and his lips were pressed together tightly.
Bigman looked at him with astonishment. "Sands of Mars, Lucky, why?"
"Because if there is a Sirian base in Saturn's system, we'll need Agent X to lead us to that base. Saturn has one tremendous satellite, eight sizeable ones, and dozens of splinter worlds. It would help to know exactly where it was."
Bigman frowned. "The cobber wouldn't be dumb enough to lead us there."
"Or maybe to let us catch him… Bigman, calculate his course forward to the point of intersection with Saturn's orbit."
Bigman did so. It was a routine moment of work for the computer.
Lucky said, "And how about Saturn's position at the moment of intersection? How far will Saturn be from Agent X's ship?"
There was the short pause necessary for getting the elements of Saturn's orbit from the Ephemeris, and then Bigman punched it in. A few seconds of calculation and Bigman suddenly rose to his feet in alarm. "Lucky! Sands of Mars!"
Lucky did not need to ask the details. He said, ''I'm thinking that Agent X may have decided on the one way to keep from leading us to the Sirian base. If he continues on ballistic course exactly as he is now, he will strike Saturn itself-and sure death."
3. Death in the Rings
There came to be no possible doubt about it as the hours passed. Even the pursuing guard ships, far behind The Shooting Starr, too far off to get completely accurate fixes on their mass detectors, were perturbed.
Councilman Wessilewsky contacted Lucky Starr. "Space, Lucky," he said, "where's he going?"
"Saturn itself, it seems," said Lucky.
"Do you suppose a ship might be waiting for him on Saturn? I know it has thousands of miles of atmosphere with million-ton pressures, and without Agrav
motors they couldn't… Lucky! Do you suppose they
have Agrav motors and forcefield bubbles?"
"I think he may be simply crashing to keep us from catching him."
Wess said dryly, "If he's all that anxious to die, why doesn't he turn and fight, force us to destroy him and maybe take one or two of us with him?"
"I know," said Lucky, "or why not short-circuit his motors, leaving Saturn a hundred million miles off course? In fact, it bothers me that he should be attracting attention to Saturn this way." He fell into a thoughtful silence.
Wess broke in! "Well, then, can you cut him off, Lucky? Space knows we're too far away."
Bigman shouted from his place at the control panel, "Sands of Mars, Wess, if we rev up enough ion beam to catch him, well be moving too fast to maneuver him away from Saturn."
"Do something."
"Space, there's an intelligent order," said Bigman. "Real helpful. 'Do something'."
Lucky said, "Just keep on the move, Wess. I'll do something."
He broke contact and turned to Bigman. "Has he answered our signals at all, Bigman?"
"Not one word."
"Forget that for now and concentrate on tapping his communication beam."
"I don't think he's using one, Lucky."
"He may at the last minute. He'll have to take a chance then if he has anything to say at all. Meanwhile we're going for him."
"How?"
"Missile. Just a small pea-shot."
It was his turn to bend over the computer. While The Net of Space moved in an unpowered orbit, it required no great computation to direct a pellet at the proper moment and velocity to strike the fleeing ship.
Lucky readied the pellet. It was not designed to explode. It didn't have to. It was only a quarter of an inch in diameter, but the energy of the proton micro-pile would hurl it outward at five hundred miles a second. Nothing in space would diminish that velocity, and the pellet would pass through the hull of The Net of Space as though it were butter.
Lucky did not expect it would, however. The pellet would be large enough to be picked up on its quarry's mass detectors. The Net of Space would automatically correct course to avoid the pellet, and that would throw it off the direct course to Saturn. The time lost by Agent X in computing the new course and correcting it back to the old one might yet allow The Shooting Starr to come close enough to make use of a magnetic grapple.
It all added up to a slim chance, perhaps vanishingly slim, but there seemed no other possible course of action. Lucky touched a contact. The pellet sped out in a soundless flash, and the ship's mass-detector needles jumped, then quieted rapidly, as the pellet receded.
Lucky sat back. It would take two hours for the pellet to make (or almost make) contact. It occurred to him that Agent X might be completely out of power; that the automatic procedures might direct a course change which could not be followed through; that the pellet would penetrate, blow up the ship, perhaps, and in any case leave its course unchanged and still marked for Saturn.
He dismissed the idea almost at once. It would be incredible to suppose that Agent X would run out of the last bit of power at the moment his ship took on the precise collision course. It was infinitely more likely that some power was left him.
The hours of waiting were deadly. Even Hector Gonway, far back on Earth, grew impatient with the periodic bulletins and made direct contact on the sub-ether.
"But where in the Saturnian system do you suppose the base might be?" he asked worriedly.
"If there is one," said Lucky cautiously, "If what Agent X is doing is not a tremendous effort to mislead us, I would say the most obvious choice is Titan. It's Saturn's one really large satellite, with three times the mass of our own Moon and over twice the surface area. If the Sirians have holed up underground, trying to dredge all of Titan for them would take a long time."
"It's hard to believe that they would have dared do this. It's virtually an act of war."
"Maybe so, Uncle Hector, but it wasn't so long ago they tried to establish a base on Ganymede [3]."
Bigman called out sharply, "Lucky, he's moving."
Lucky looked up in surprise. "Who's moving?"
"The Net of Space. The Sirian cobber."
Lucky said hastily, "I'll get in touch with you later, Uncle Hector," and broke contact. He said, "But he can't be moving, Bigman. He can't possibly have detected the pellet yet."
[3] Lucky Starr and the Pirates of the Asteroids.