hill like the most important of the forts of Paris on the slope of
Mont Valerien.

"That would be Venice," said Phil Evans, "if we were in Europe."

"And if we, were in Europe," answered Uncle Prudent, "we should know
how to find the way to America."

The "Albatross" did not linger over the lake through which the river
flows, but continued her flight down the valley of the Hydaspes.

For half an hour only did she descend to within thirty feet of the
river and remained stationary. Then, by means of an india-rubber
pipe, Tom Turner and his men replenished their water supply, which
was drawn up by a pump worked by the accumulators. Uncle Prudent and
Phil Evans stood watching the operation. The same idea occurred to
each of them. They were only a few feet from the surface of the
stream. They were both good swimmers. A plunge would give them their
liberty; and once they had reached the river, how could Robur get
them back again? For his propellers to work, he must keep at least
six feet above the ground.

In a moment all the chances pro and con were run over in their heads.
In a moment they were considered, and the prisoners rushed to throw
themselves overboard, when several pairs of hands seized them by the
shoulders.

They had been watched; and flight was utterly impossible.

This time they did not yield without resisting. They tried to throw