ing again. Tom quickly shut off the
motor, so that he might give his whole attention to the work of
tightening the handkerchief. But something seemed to be wrong. No
matter how tightly he twisted the stick the blood did not stop flowing.
The lad was frightened. In a short time the man would bleed to death.

"I've got to get him to the sanitarium in record time!" exclaimed Tom.
"Fog or no fog, I've got to run at full speed! I've got to chance it!"

Making the bandage as tight as he could and fastening it in place, the
young inventor sprang to the motor and set it in motion. Then he went
to the wheel. In a few minutes the ARROW was speeding through the
water as it had never done before, except when it had raced the RED
STREAK. "If I hit anything--good-by!" thought Tom grimly. His hands
were tense on the rim of the steering-wheel and he was ready in an
instant to reverse the motor as he sat there straining his eyes to see
through the curtain of mist that hung over the lake. Now and then he
glanced at the compass, to keep on the right course, and from time to
time he looked at Mr. Duncan. The hunter was still unconscious.

How Tom accomplished that trip he hardly remembered afterward. Through
the fog he shot, expecting any moment to crash into some other boat.
He did pass a rowing craft in which sat a lone fisherman. The lad was
upon him in an instant, but a turn of the wheel sent the ARROW safely
past, and the startled fisherman, whose frail craft was set to rocking
violently by the swell from the motor-boat, sent an objecting cry
through the fog after Tom. But the youth did not reply. On and on he
raced, getting the last atom of power from his motor.

He feared Mr. Duncan would be dead when he arrived, but when he saw the
dock of the sanitarium looming up out of the mist and shut off the
power to slowly run up to it, he placed his hand on the wounded man's
heart and found it still beating.

"He's alive, anyhow," thought the youth, and then his craft bumped up
against the bulkhead and a man in the boathouse on the dock was sent on
the run for a physician.

Mr. Duncan was quickly taken up to the sanitarium on a stretcher and
Tom followed.

"You must have made a record run," observed one of the physicians a
little while afterward, when Tom was telling of his trip while waiting
in the office to hear the report on the hunter's condition.

"I guess I did," muttered the young inventor "only I didn't thin