I marveled still more at the conduct of our captain.

Within a half hour now, his course would be barred by the cataract.

No matter how perfect his machine, it could not escape the power of the great falls.

If the current once mastered our engines, we should inevitably disappear in the gulf nearly two hundred feet deep which the waters have dug at the base of the falls! Perhaps, however, our captain had still power to turn to one of the shores and flee by the automobile routes.
In the midst of this excitement, what action should I take personally?
Should I attempt to gain the shores of Navy Island, if we indeed advanced that far?
If I did not seize this chance, never after what I had learned of his secrets, never would the Master of the World restore me to liberty.
I suspected, however, that my flight was no longer possible.

If I was not confined within my cabin, I no longer remained unwatched.