is too great," said Morey slowly. "The escaping energy from that
world will destroy the others of this system as completely, and it will
probably cause the sun itself to blow up--perhaps to form new planets,
and so the process repeats itself. But Venone knows better now, and
their criminals will not populate more worlds.

"And we can go--home. To our little dust specks."

"But they're wonderfully welcome dust specks, and utterly important to
us, Earthman," reminded Zezdon Afthen.

"Let us go then," said Arcot.

* * * * *

It was dusk, and the rose tints of the recently-set sun still hung on
the clouds that floated like white bits of cotton in the darkening blue
sky. The dark waters of the little lake, and the shadowy tree-clad hills
seemed very beautiful. And there was a little group of buildings down
there, and a broad cleared field. On the field rested a shining, slim
shape, seventy-five feet long, ten feet in diameter.

But all, the lake, the mountains even, were dwarfed by the silent,
glistening ruby of a gigantic machine that settled very, very slowly,
and very, very gently downward. It touched the rippled surface of the
lake with scarcely a splash, then hung, a quarter submerged in that
lake.

Lights were showing in the few windows the huge bulk had, and lights
showed now in the buildings on the shore. Through an open door light was
streaming, casting silhouettes of two men. And now a tiny door opened in
the enormous bulk that occupied the lake, and from it came five figures,
that floated up, and away, and toward the cottage.

"Hello, Son. You have been gone long," said Arcot, senior, gravely, as
his son landed lightly before him.

"I thought so. Earth has moved in her orbit. More than six months?"

His father smiled a bit wryly. "Yes. Two years and three months. You got
caught in another time field and thrown the other way this time?"

"Time and force. Do you know the story yet?"

"Part of it--Venone sent a ship to us within a month of the time you
left, and said that all Thett's system had disappeared save for one
tremendous gas cloud--mostly hydrogen. Their ships were met by such a
blast of cosmic rays as they came toward Thett that the radiation
pressure made it almost impossible to advance. There were two distinct
waves. One was rather slighter, and was more in the gamma range, so they
suspected that two bodies had been directly destroyed; one small one,
and one l