really going to move away from here, then," decided Dick
thoughtfully.

"Why do you say that?" asked Dr. Bentley.

"Because Tag has a fine appetite, and an abundance of muscle.
Instead of a dozen tins he would have taken three or four times
that amount. It is only his need for traveling in light marching
order that made him so moderate in the tax he levied."

"It's only an incident," continued Dr. Bentley. "And I am glad
of it. It shows that the young scamp is still in this neighborhood,
and that means that there is still a fair chance of his being
captured."

"I wonder why he stole one particular drug from your case?" Dick
mused aloud.

Dr. Bentley smiled, not relieving Prescott's curiosity as to the
name of the missing drug.

"It can't be that Tag means to commit suicide, as a last resort,
can it?" Dick suggested.

"I think not," smiled Dr. Bentley.

Then the leader of Dick & Co. gave up further effort along this
line to secure the desired information.

"I started in to offer you a suggestion, Prescott," continued
the medical man.

"Yes, sir; it had something to do with training, I believe."

"Before I tell you what I have to say, Prescott, suppose you put
each of your 'men' through the stunts they were doing before."

"Which one first, sir?"

"Any one of the young men."

"Dave!" called Dick.

Darrin stepped forward.

"One moment," said Dr. Bentley. He felt Dave's pulse, then nodded.
"Go ahead, Darrin."

Dave started in with the work.

"Speed it up!" ordered Dick. "Faster! Drive!"

Darry continued at his training work until Dr. Bentley called:

"Stop! Now, stand still, young man."

Bending over, Dr. Bentley placed one ear against Dave's chest,
watch in hand, while the others looked on curiously.

"Just what I thought," nodded the physician, looking up at last.
"Prescott, you have a lot of bright ideas in training, but you're
driving your squad too hard. Darrin's heart doesn't come down
to normal speed as soon as it should."

"Anything wrong with the heart, sir" asked Darry.

"Nothing. It's the trainer that's wrong," replied Dr. Bentley.
"It is a fault with a lot of trainers without long experience
that they work an athlete's heart overtime. Darrin's heart should
have slowed down in a little more than half the time required
in this instance. Set another man at work, Prescott. I can show
you how to do this properly. Let the others work as hard as Darrin
did. I want data t