"Copernicus Droop—hold on!" she cried.

He turned to her, his face full of anxious fear. Rebecca lay on her back with her hands at her sides, but her head was raised stiffly from the floor.

"Copernicus Droop," she said, solemnly, "hev ye brought any rum aboard with ye? 'Cause if ye have I won't——"

She never concluded, for at this moment her head was jerked back sharply against the floor by a tremendous upward leap of the machine.

There was a hissing roar as of a thousand rockets, and even as Rebecca was wondering, half stunned, why she saw so many jumping lights, Si Pray gazed open-mouthed at the ascension of a mysterious dark body apparently aimed at the sky.

The Panchronicon had started.


CHAPTER IV

A CHANGE OF PLAN

It was long after their bed-time and the two sisters were utterly exhausted; but as the mysterious structure within which they lay glided northward between heaven and earth with the speed of a meteor, Rebecca and Phœbe long courted sleep in vain.