The ships came swarming out of space in perfect coordination. An entire wing struck directly at the Observatory. In response to this, almost inevitably, the defending forces on Ceres concentrated their power at that point.

The attack was not pressed full-force. Ship after ship dived downward to launch energy beams at an obviously impregnable shield. None took the risky step of trying to blast the underground power plants, the location of which they must have known. Government ships took to space and ground batteries opened up. In the end two pirate ships were destroyed when their shields broke down and they flared into glowing vapor. Another one, its energy reserves down to a trickle, was almost captured in the eventual pursuit. It was blown up at the last moment, probably by its own crew.

Even during the attack some of the defenders suspected it to be a feint. Later, of course, they knew that for a fact. While the Observatory was engaged, three ships landed on the asteroid a hundred miles away. Pirates disembarked and with hand weapons and portable blasting cannon attacked the residential air-locks from flitting "space-sleds."

The locks were blasted open and space-suited pirates swarmed down the corridors from which air emptied. The upper reaches of the corridors were factories and offices, the occupants of which had evacuated at the first alarm. Their place was taken by space-suited members of the local militia who fought bravely, but were no match for the professionals of the pirate fleet.

In the lower depths, in the peaceful apartments of Ceres, the noise of blasting battle sounded. Calls for help were sent out. Then, almost as suddenly as they came, the pirates retreated.

When they left, the men of Ceres counted their casualties. Fifteen Cereans were dead and many more hurt in one way or another, as against the bodies of five pirates. Damage to property was very high.

"And one man," Conway explained furiously to Lucky when the latter arrived, "is missing. Only he's not on the list of inhabitants and we've been able to keep his name out of the news reports."

* * *

Lucky found Ceres the focus of almost hysterical excitement now that the raid was over. It had been the first attack on an important Terrestrial center by any enemy in a generation. He had had to pass three inspections before being allowed to land.

He sat in the Council office with Conway and Henree and said bitterly, "So Hansen is gone! That's what it boils down to."

"I'll say this for the old hermit," said Henree. "He had guts. When the pirates penetrated, he insisted on getting into a suit, grabbing up a blaster, and going up there with the militia."

"We weren't short on militia," said Lucky. "If he had stayed down here, he would have done us a much greater service. How is it you didn't stop him? Under the circumstances was he a person to be allowed to do such a thing?" Lucky Starr's usually even voice contained a repressed anger.

Conway said patiently, "We weren't with him. The guard we left in charge had to report for militia duty. Hansen insisted on joining him and the guard decided he could do both duties at once that way; fight the pirates and guard the hermit."

"But he didn't guard the hermit."

"Under the circumstances he can scarcely be blamed. The guard saw Hansen last charging a pirate. Next thing he knew there was no one in sight and the pirates were retreating. Hansen's body hasn't been recovered. The pirates must have him alive or dead."

"So they must," said Lucky. "Now let me tell you something. Let me tell you exactly what a bad mistake this was. I'm certain that the whole attack on Ceres was arranged simply to capture Hansen."

Henree reached for his pipe. "You know, Hector," he said to Conway, "I'm almost tempted to go along with Lucky on that. The attack on the Observatory was a miserable one, an obvious false alarm to draw off our defenses. Getting Hansen was the only thing they did accomplish."

Conway snorted. "One possible information leak like the hermit isn't worth risking thirty ships."

"That's the whole point," said Lucky vehemently. "Right now, it may be. I told you about the asteroid I was on, the kind of industrial plant it must have been. Suppose they're almost at the point where they're ready to make the big push? Suppose Hansen knows the exact date for when the push is scheduled? Suppose he knows the exact method?"

"Then why hasn't he told us?" demanded Conway.

"Maybe," said Henree, "he's waiting to use it as material with which to buy his own immunity. We never did have a chance really to discuss that question with him. You've got to admit, Hector, that if he had that kind of key information, any number of ships would have been worth the risk. And you've got to admit Lucky is probably right about their being ready for the big push."

Lucky looked sharply from one to the other. "Why do you say that, Uncle Gus? What's happened?"

"Tell him, Hector," said Henree.

"Why tell him anything," growled Conway. "I'm tired of his one-man trips. He'll be wanting to go to Ganymede."

"What's on Ganymede?" asked Lucky coldly. As far as he knew, there was little or nothing on Ganymede to interest anyone. It was Jupiter's largest moon, but the very nearness of Jupiter made it difficult to maneuver space-ships, so that space travel in its vicinity was unprofitable.

"Tell him," said Henree.

"Look," said Conway. "Here it is. We knew Hansen was important. The reason we didn't have him under tighter observation, the reason Gus and I weren't there ourselves, was that two hours before the pirate attack a report came in from the Council to the effect that there was evidence that Sirian forces had landed on Ganymede."

"What kind of evidence?"

"Tight-beam sub-etheric signals had been penetrated. It's a long story, but the nub of it was that, more by accident than by anything else, a few scraps of code were picked up. The experts say it's a Sirian code and certainly there isn't anything Terrestrial on Ganymede that's capable of putting out signals in a beam tliat tight. Gus and I were going to take Hansen and return to Earth when the pirates attacked, and that's it. Right now we've still got to return to Earth. With Sirius on the scene there may be war at any time."

Lucky said, "I see. Well, before we go to Earth, there's one thing I would like to check on. Do we have motion pictures of the pirate attack? I'm supposing the defenses of Ceres weren't so disorganized that pictures weren't taken?"

"They've been taken. How do you expect them to help?"

"I'll tell you after I've seen them."

* * *

Men in the uniform of the fleet, and wearing high-rank insignia, projected the top-secret motion pictures of what later became known in history as the "Ceres Raid."

"Twenty-seven ships attacked the Observatory. Is that right?" asked Lucky,

"Right," said a commander. "No more than that."

"Good. Now let's see if I have the rest of the facts straight. Two of the ships were accounted for during the fight and a third during the pursuit. The remaining twenty-four got away, but you have one or more shots of each of them in retreat."

The commander smiled. "If you're implying that any of them landed on Ceres and are still hidden here, you're quite wrong."

"As far as those twenty-seven ships are concerned, perhaps. But three more ships did land on Ceres and their crew attacked the Massey Air-lock. Where are the pictures of those?"

"Unfortunately we didn't get many of those," admitted the commander uncomfortably. "It was a case of complete surprise. But we have pictures of them in retreat, too, and we showed you those."

"Yes, you did, and there were only two ships in those pictures. Eyewitnesses reported three as having landed."

The commander said stiffly, "And three took off and retreated. There's eyewitness evidence of that also."

"But you have pictures of only two?"

"Well... yes."

"Thank you."

* * *

Back in the office Conway said, "Now what was that all about, Lucky?"

"I thought Captain Anton's ship might be in an interesting place. The motion pictures proved it was."

"Where was it?"

"Nowhere. That was what was interesting. His ship is the one pirate ship I would recognize, yet no ship faintly similar took part in the raid. This is strange because Anton must be one of their very best men or they wouldn't have sent him out after the Atlas. Or it would be strange if the truth wasn't that thirty ships attacked Ceres and we had pictures of only twenty-nine. The missing thirtieth was Anton!"

"I could figure that out too," said Conway. "What of it?"

Lucky said, "The attack on the Observatory was a feint. That's admitted even by the defending ships, now. It was the three ships that attacked the air-lock that were important and they were under Anton's command. Two of those ships joined the rest of the squadron in their retreat, a feint within a feint. The third ship, Anton's own, the only one we didn't see, continued on with the main business of the day. It left on an entirely different trajectory. People saw it lift into space but it veered off so radically that our own ships, chasing the main body of enemy with all its might, never even caught it on film."

Conway said unhappily, "You're going to say that it's going to Ganymede."

"Doesn't it follow? The pirates, however well organized, can't attack Earth and its dependencies on their own. But they can put up an excellent diversionary fight. They can keep enough Terrestrial ships patrolling the endless asteroid belt to allow Sirian fleets to defeat the remainder. On the other hand, Sirius can't safely conduct a war eight light years away from their own planet unless they can count on major help from the asteroids. After all, eight light years amounts to forty-five trillion miles. Anton's ship is speeding to Ganymede to assure them of that help and to give the word to begin the war. Without warning, of course."

"If only," muttered Conway, "we could have stumbled on their Ganymede base sooner."

"Even with the knowledge of Ganymede," said Henree, "we would not have known the seriousness of the situation without Lucky's two trips into asteroid territory."

"I know. My apologies, Lucky. Meanwhile we have very little time to do anything. We'll have to strike at the heart instantly. A squadron of ships sent to the key asteroid Lucky has told us of-"

"No," said Lucky. "No good."

"Why do you say that?"

"We don't want to start a war, even if it's with a victory. That's what they want to do. Look here, Uncle Hector, the pirate, Dingo, might have burned me down right there on the asteroid. Instead, he had orders to set me adrift in space. For a while I thought that was to make my death look like an accident. Now I feel it was intended to anger the Council. They were going to broadcast the fact they had killed a Councilman, not hide it, goading us into a premature attack. One of the reasons for the Ceres Raid might have been to insure an added provocation."

"And if we do start the war with a victory?"

"Here on this side of the Sun? And leave Earth on the other side stripped of important units of the fleet? With Sirian ships waiting at Ganymede, also on the other side of the Sun? I predict that it would be a very costly victory. Our best bet is not to start a war, but to prevent one."

"How?"

"Nothing will happen until Anton's ship reaches Ganymede. Suppose we intercept him and prevent the meeting-"

"Interception is a long chance," said Conway doubtfully.

"Not if Z go. The Shooting Starr is faster and has better Ergometrics than any ship in the fleet."

"You go?" cried Conway.

"It would be unsafe to send fleet units. The Sirians on Ganymede would have no way of being certain an attack wasn't heading their way. They'd have to take counteraction and that would mean the very war we're trying to avoid. The Shooting Starr would look harmless to them. It would be one ship. They'd stay put."

Henree said, "You're overeager, Lucky. Anton has a twelve-hour head start. Even the Shooting Starr can't make that up."

"You're wrong. It can. And once I catch them, Uncle Gus, I think I can force the asteroids into surrender. Without them Sirius won't attack and there'll be no war."

They stared at him.

Lucky said earnestly, "I've come back twice now."

"Each time by half a miracle," grumbled Conway.

"The other times I didn't know what I was tackling. I had to feel my way. This time I do know. I know exactly. Look, I'll warm up the Shooting Starr and make the necessary arrangements with the Ceres Observatory while that's taking place. You two can get on the sub-ether to Earth. Get the Co-ordinator to-"

Conway said, "I can take care of that, son. I've been dealing with government affairs before you were born. And Lucky, will you take care of yourself?"

"Don't I always, Uncle Hector? Uncle Gus?" He shook hands warmly and whirled away.

* * *

Bigman scuffed the dust of Ceres disconsolately. He said, "I've got my suit on. Everything."

"You can't go, Bigman," said Lucky. "I'm sorry."

"Why not?"

"Because I'm taking a short cut to get to Ganymede."

"So what? What kind of a short cut?"

Lucky smiled tightly. "I'm cutting through the Sun!"

He walked out on to the field toward the Shooting Starr, leaving Bigman standing there, mouth open.