ast of the safeguards was hardly fastened firmly when Estelle
listened intently.

"I hear a rumbling!" she said quietly.

Arthur reached forward and put his hand on the mass of concrete.

"It is quivering!" he reported as quietly. "I think we'll be on
our way in a very little while."

The group broke for the stairs, to watch the panorama as the runaway
sky-scraper made its way back through the thousands of years to
the times that had built it for a monument to modern commerce.

Arthur and Estelle went high up in the tower. From the window of
Arthur's office they looked eagerly, and felt the slight quiver as
the tower got under way. Estelle looked up at the sun, and saw it
mend its pace toward the west.

Night fell. The evening sounds became high-pitched and shrill,
then seemed to cease altogether.

In a very little while there was light again, and the sun was
speeding across the sky. It sank hastily, and returned almost
immediately, _via_ the east. Its pace became a breakneck rush. Down
behind the hills and up in the east. Down in the west, up in the
east. Down and up-- The flickering began. The race back toward modern
times had started.

Arthur and Estelle stood at the window and looked out as the sun
rushed more and more rapidly across the sky until it became but a
streak of light, shifting first to the right and then to the left
as the seasons passed in their turn.

With Arthur's arms about her shoulders, Estelle stared out across
the unbelievable landscape, while the nights and days, the winters
and summers, and the storms and calms of a thousand years swept
past them into the irrevocable past.

Presently Arthur drew her to him and kissed her. While he kissed
her, so swiftly did the days and years flee by, three generations
were born, grew and begot children, and died again!

Estelle, held fast in Arthur's arms, thought nothing of such trivial
things. She put her arms about his neck and kissed him, while the
years passed them unheeded.

* * * * *

Of course you know that the building landed safely, in the exact
hour, minute, and second from which it started, so that when the
frightened and excited people poured out of it to stand in Madison
Square and feel that the world was once more right side up, their
hilarious and incomprehensible conduct made such of the world as
was passing by think a contagious madness had broken out.

Days passed before the story of the two