“Change places with me—let me pull!” exclaimed Max.

Ibrahim was nothing loath to do so, and he took the rudely-shaped paddle from Max, which he had used to guide the boat in place of a rudder.

The American was stronger than either the Persian or the Arab, and the force of his oar soon made itself felt.

The outer ring of the now quiescent whirlpool was reached, and Max uttered devoutly the words:

“Thank Heaven!”

While Ibrahim, after the manner of his people, exclaimed:

“Allah be praised! Sin Syu!

Which latter was equivalent to saying:

“Allah be praised! I have said it!”

“We have not found the outlet of the river,” said Max.