They had neither time nor strength to do so. In a second they were
rendered speechless by a gag, blind by a bandage, thrown down,
pinioned and carried bodily off across the clearing. What could they
think except that they had fallen into the hands of people who
intended to rob them? The people did nothing of the sort, however.
They did not even touch Uncle Prudent's pockets, although, according
to his custom, they were full of paper dollars.

Within a minute of the attack, without a word being passed, Uncle
Prudent, Phil Evans, and Frycollin felt themselves laid gently down,
not on the grass, but on a sort of plank that creaked beneath them.
They were laid down side by side.

A door was shut; and the grating of a bolt in a staple told them that
they were prisoners.

Then there came a continuous buzzing, a quivering, a frrrr, with the
rrr unending.

And that was the only sound that broke the quiet of the night.

Great was the excitement next morning in Philadelphia Very early was
it known what had passed at the meeting of the Institute. Everyone
knew of the appearance of the mysterious engineer named Robur--Robur
the Conqueror--and the tumult among the balloonists, and his
inexplicable disappearance. But it was quite another thing when all
the town heard that the president and secretary of the club had also
disappeared during the night.

Long and keen was the search in the city and neighborhood! Useless!