He's drowning!" she gasped, and as the words passed
her lips Don Carlos also disappeared--to reappear, however, a minute
later, swimming on his back and supporting Tony.

He seemed to be having difficulty in keeping afloat, and it seemed to
all those anxiously watching that he might go under before help could
reach him. Again the engine-room bells clanged, and this time the
signal from the bridge was "Stop"; the boat, fully-manned, was lowered
with a run, and at the same time one of the sailors at the stern of the
yacht slung a lifebuoy overside with such force and accuracy that it
hit the water with a splash within ten yards of Don Carlos, who
propelled himself towards it, and with its aid succeeded in supporting
himself and Tony until the boat reached him and he and Tony were safely
hauled aboard.

Orders were shouted from the bridge, sailors scurried to let down the
accommodation ladder and stood by with ropes, awaiting the return of
the boat, which was being rapidly rowed back to the _Killarney_.

The boat came alongside at last, and Tony, who appeared to be exhausted
and almost unconscious, was with difficulty hoisted up the ladder to
the deck, where the ship's doctor was already waiting with restoratives.

Someone started a cheer as Don Carlos, dripping wet but smiling, came
up the ladder, and the cheer was taken up by practically everyone
around, save Myra, who was standing tense and white, her brain in a
turmoil.

"Bravo, Don Carlos, bravo!" shouted an excited and enthusiastic
youngster, rushing forward and trying to shake Don Carlos's hand; but
Don Carlos waved him off with an impatient frown and bent over Tony,
who had opened his eyes and was making an effort to sit up.

"Is he all right, doctor?" he asked.

"Yes, I think he is only suffering from shock, sir," the doctor
answered, unfastening Tony's collar, which seemed to be choking him.

"Thanks," gasped Tony faintly and painfully. "I--I'll be all right
presently. Think I must have hit my head on something. Give me a
drink, will you?"

The doctor gave him brandy, had him carried to his cabin, where he
examined him carefully and discovered that he was not injured. He
surmised that Tony had probably been partly stunned by falling flat on
the water when he toppled overboard, and "knocked silly"--to use Tony's
own expression--and he was able to tell the passengers that their host
would probably be all right again within an hour or two.

"Thank