round the girl lost her balance.

She tried to save herself, and, failing, pitched headlong into the water.

Harry saw her go under the greenish waves.

"She'll be struck by the paddle wheel," he yelled, and then, splash! he
was overboard himself.

Bravely he struck out to save the maiden.

The order was given to back the steamboat.

The wheels churned up the water into a white foam, but still the momentum
carried the large craft on. In the meantime Harry came up and struck out
valiantly for the girl, who was now going down for a second time.

"Save her! Save her!" shrieked the mother of the girl, in an agony of
fear.

Half a dozen life preservers were thrown overboard, but none came to where
the girl could reach them.

The mother of the girl wanted to join her daughter in the water but strong
hands held her back.

"The young fellow will save her, madam!"

"He's a true hero!"

Life lines were thrown over, but even these did no good.

The steamboat swung around, but the run of the water washed the girl
closer and closer to the paddle wheel.

She now came up a second time. Should she sink again all would be over.

Harry was swimming with all the strength and skill at his command.

At last he was within a yard of the struggling girl.

The maiden threw up her hands and went under.

As quick as a flash Harry dove down.

A second passed. Then up came the youth with the girl clinging to his
shoulder.

But now the current was apparently too strong for both of them.

They were hurled up against the paddle wheel of the steamboat, and then
disappeared entirely from view.

Jack Broxton gave a groan.

"Harry is lost!"

Jerry shuddered.

"It looks like it," he replied.

The captain of the steamboat did not dare to move his craft for fear he
would do more harm than good.

The mother of the girl continued to struggle to free herself.

But now a cry was heard. It came from the stern of the steamboat.

"There they are!"

"The girl is safe and so is that brave young man."

Jerry and Jack Broxton heard the cry, and immediately put about in their
yacht.

Harry was swimming along on his side. The girl was too weak to support
herself, and he was holding her up well out of the water.

It took the Whistler but a moment to run up alongside of the pair. Jerry
reached over and caught hold of the girl and placed her on deck.

In the meantime Harry secured a rope thrown by Jack Broxton and pulled
himself