“Really,” interrupted Beth, who was gazing through the window, “I believe here is the young man from Sangoa!”

“Where?” they all cried, crowding forward to look.

“Coming up the walk.  See!  Isn’t that the same mysterious individual whose life Maud saved?”

“That’s the identical mystery,” declared Uncle John.  “I suppose he has come here to look us up and thank us.”

“Then, for heaven’s sake, girls, pump him and find out where Sangoa is,” said Arthur hastily, and the next moment a bell boy approached their party with a card.

They looked at the young fellow curiously as he came toward them.  He seemed not more than eighteen years of age and his thin features wore a tired expression that was not the result of his recent experience but proved to be habitual.  His manner was not languid, however, but rather composed; at the same time he held himself alert, as if constantly on his guard.  His dress was simple but in good taste and he displayed no embarrassment as he greeted the party with a low bow.

“Ah,” said Uncle John, heartily shaking his hand, “I am delighted to find you so perfectly recovered.”

A slight smile, sad and deprecating, flickered for an instant over his lips.  It gave the boyish face a patient and rather sweet expression as he slowly replied: 

“I am quite myself to-day, sir, and I have come to assure you of my gratitude for your rescue of me yesterday.  Perhaps it wasn’t worth all your bother, but since you generously took the trouble to save me, the least I can do is to tender you my thanks.”  Here he looked from one to another of the three girls and continued:  “Please tell me which young lady swam to my assistance.”

“Oh, it was none of us,” said Patsy.  “Miss Stanton—­Maud Stanton—­swam out to you, when she noticed you were struggling, and kept you afloat until we—­until help came.”

“And Miss Stanton is not here?”

“Not at present, although she is staying at this hotel.”

He gravely considered this information for a moment.  As he stood there, swaying slightly, he appeared so frail and delicate that Uncle John seized his arm and made him sit down in a big easy chair.  The boy sighed, took a memorandum from his pocket and glanced at it.

“Miss Doyle and Mr. Weldon pulled out in a boat and rescued both Miss Stanton and me, just as we were about to sink,” he said.  “Tell me, please, if either Miss Doyle or Mr. Weldon is present.”

“I am Arthur Weldon,” said that young gentleman; “but I was merely the boatman, under command of Miss Doyle, whom I beg to present to you.”

A. Jones looked earnestly into Patsy’s face.  Holding out his hand he said with his odd smile:  “Thank you.”  Then he turned to shake Arthur’s hand, after which he continued:  “I also am indebted to Mr. Merrick for carrying me to the hospital.  The doctor told me that only this prompt action enabled them to resuscitate me at all.  And now, I believe it would be courteous for me to tell you who I am and how I came to be in such dire peril.”