"I'll chance it," he said. "Because I must. I—look!"

Tansie turned. There, appearing with that thickening of the substance that characterized the arrival of a "time car" was the Blaines' ship. And beside it was the other one. Doors emerged, and the six got out of their ships and faced one another.

"So!" snapped Calvin Blaine. "We can finish this right here."

"Don't ask for mercy," snapped Barry Ford. "Nor expect sportsmanship. This is for keeps, and for the permanent existance of a whole world."

Tansie shuddered. "They'll fight," she said. "Because whichever side wins, they will prevent the others from returning to their worlds with the information that is needed. One and one alone will survive—and it is not fair, four to two, and Calvin Blaine an elderly man."

Tod Laplane lifted his gun; Laurie Blaine, her blonde hair a shining halo, pointed a revolver at Joan Laplane, who raced forward like a raven-haired fury, a gleaming knife in her hand. Barry Ford shook his broad shoulders and leaped—just as a shot rang out from the side.

They all turned. And across the space behind the Ford-Laplane ship there came another couple. A second Calvin and Laurie Blaine, armed.

In all, only four shots were fired before the embattled ones came to contact blows. Then the guns were wrested from fighting hands and it was tooth and nail.

"Come on," said Ackerman. "Because what you see is but eight people. If we do not, there will be that many billions of people fighting to the death."

Their motion caught eyes in the fighting crowd. Both sides were apparently wary of more re-inforcements. None of them knew how many would be coming back; it is conceivable that whole armies could be built up of people returning to fight this battle.