"Leggett is signalling!" cried Harry. "There are Chinks in the launch!"

"Save the princess!" exclaimed Alice. "That yellow fiend has unearthed the treasure and now he will kill her."

"But how to get at him!" cried Old King Brady. "You two keep guard here. There must be a rear entrance. I'll tackle him there."

He ran around to where they were standing.

"Let Harry go too!" cried Alice. "If he comes out with the princess I'll shoot him."

"Come, Harry," said the old detective, and around the house they went.

Meanwhile Leggett was hurrying along the beach.

There proved to be a back door to the house, but it was shut. There was no window here, thus it was impossible to tell what Garshaski was about, but as they drew nearer they could hear him fumbling with the lock of the door.

"Stand in close, Harry," whispered the old detective.

The order was a wise one, for the next instant the door slightly opened and Garshaski peered out.