Ruby Dawn carried the liaison team provided by Confederation's Bureau of Naval Intelligence. Those people had been away from home even longer than their Ulantonid shipmates.

Theirs was a grueling task. They had to survey all incoming data and isolate those bits which justified transmission to Luna Command. They had to be diplomatic with their hosts. It was too much for twelve people eleven thousand light-years from the nearest of their own kind.

An Ulantonid officer stepped into their working compartment. "Commander Russell? We're getting something that might interest you."

Russell was a short black man built like a tombstone. He almost responded, "We'll get it in a while, won't we? Where's the damned hurry?" He did not. The Blues were so courteous it made him ashamed to think of giving them a hard time.

"Important?" he asked. The Blues were showing strain too, though they were more accustomed to extended missions.

"Song of Myrion reported a strong neutrino source. It didn't look natural. On the other hand, it was two-thirds of a parsec from the nearest star. Control is moving probe ships in from several directions. It was felt that you would want to see the scans we're getting."

"Of course. Of course. Doris, you can get in touch through Group Voice Nomahradine. Lead on, Group Voice."

Russell did not expect anything. The Blues came up with something new twice a week. There was always a natural explanation. But someone always went along. It was part of the get-along policy. Never give the Blues offense. The squabbling and snarling had to be confined to liaison team quarters.

A communications officer greeted them with, "We might have something this time, Group Voice." He gestured. Russell surveyed the elaborate and only slightly alien equipment. One huge display pinpointed the probeships involved in the current exercise. They had taken positions on an arc one Ulantonid light-year from the neutrino source. Lines and arrows of colored light flickered in and out of existence.

Russell was astounded. The neutrino source was not a point. The lines indicated that it subtended a half second of arc, vertically and horizontally, from the point of view of each observer. He did some quick mental arithmetic. "Jesus," he murmured. "That's a globe... almost six times ten to the twelfth kilometers in diameter. That's five hundred tunes the diameter of the old Solar System."

The Group Voice was equally impressed. "Commander, that's one hell of an artifact."

Russell scanned the displays. There was enough mass in the region to slightly distort space! The stars behind did not show through.

"Could it be a dark nebula?"

"Too dense."

"You'll take a closer look?"

"When it's cleared up top."

"Whatever it is, it's moving. At a damned good clip."

"That's what makes us so interested, Commander."

Russell looked for a spare seat. There were none. The word was out. The place was filled with curious Blues. The Heart Of The Shield, or Fleet Admiral, made her entry. She spoke with her science officers, and included Russell as a courtesy. Russell simply listened. It was not his place to offer his thoughts.

It took three days to design a probe mission. A swarm of instrument packages would be placed in the great globe's path, well ahead, passive, hidden on old spatial debris. Care would be exercised so the ships placing the instruments would remain undetected.

It took three weeks to do the seeding. Another month passed before the globe reached the instruments. During that period scores of couriers were recorded moving to and from the neutrino source. Two convoys swarmed out toward the remote frontier.

Intense examination of space behind the globular revealed it to be the focus of tremendous activity. Enemy ships swarmed through that trailing space. The globular had a cometary tail of vessels falling away and catching up.

"It looks like the warfleets are clearing the way for this outfit," Russell told his compatriots.

"Aren't they working a little far ahead? I mean, it'll be thirty or forty thousand years before they reach Confederation."

"Maybe it's lag time in case the war fleets run into somebody stubborn."

"Stubborn? They could roll over anything. There're so many of them the numbers become meaningless."

"Still, there seems to be a gap in weapons and communications technology between them and us. I'd guess around two centuries. That means we'll kill a lot more of them than they'll kill of us. The Blues think they're frozen into a technological stasis. Their real weapon is their numbers. If they ran into somebody very far ahead of us, they'd suffer. They'd win, but it might take them generations. I'd guess they've been through it before, which would be why the Globular is so far behind the front."

Probes into star systems behind the Globular had shown, for the first time, the enemy actually living on planets. Billions of the little kangaroo people seemed to have been dumped, apparently to rework the worlds to certain specifications. The Ulantonid experts thought they would be taken off after the terraforming was complete.

Yet another puzzle.

More of the little creatures were occupied mining the asteroidal and cometary belts of numerous systems. Operating in hordes, they stripped whole systems of spatial debris.

The significance of the marked bodies had become apparent. The little folk were using that type asteroid as a portable world. The big bodies were mined hollow, given drives, and turned into immense spaceships. Given spin, they achieved centrifugal gravity. Built up in tiers inside, they could provide more living space than any planet. They could grow with their populations.

"They must breed like flies," someone suggested. "If they have to devour everything for living space."

"Question," Russell said. "The Blues say they leave the planets after terraforming them. Why?"

"Nothing about these things makes any sense," a woman replied. "I think we're wasting our time trying to figure them out. Let's concentrate on finding weaknesses."

Russell suggested, "Knowing why they're doing what they're doing might clue us how to stop them. Anybody think we can do that now?"

Ruby Dawn was a ship of despair. Hope had vanished. Its crew no longer believed their peoples would survive the coming onslaught.

"We need deeper probes," Russell said. "We have to get this far again past the Globular if we really want to know what they're doing. From here it looks like a million-year project to remodel the galaxy."

"But we can't probe that deep."

"No, we can't. Unfortunately. So we'll never know."

When the first remote instruments were activated by the Globular, everyone in the fleet made sure he or she could examine the incoming data.

Within hours the sight of lines of huge asteroid-ships, stacked tens of thousands high, wide, and deep, killed all interest.

What point to staring into the eyes of doom? Let the watching be done by machines that could not be intimidated.

The probe fleet turned toward home, pursuing the sorry knowledge it had sped ahead.