eral Save extended his right hand.

"Your sword, sir!" he commanded.

The other staggered back and his face turned a ghastly white.

"Wha--what, sir?" he stammered.

"Your sword," repeated the general calmly, his hand still extended.

With a visible effort the other pulled himself together.

"I do not understand you, sir," he said, with a subdued air of insolence,
glancing quickly about at the others who now surrounded him.

General Save lost all patience now. He took a step forward.

"Give me your sword, you traitor!" he commanded angrily. "You are under
arrest. You shall be shot in ten minutes."

The face of the accused officer turned livid. There was no pretending to
misunderstand now.

Quickly he glanced about him. Chester and Colonel Anderson, in their
civilian clothes, stood each with a hand in his right coat pocket, and in
the hand of each rested a little automatic.

An ever increasing group of Serbian officers also surrounded him. The man
with whom the traitor had been engaged in conversation moved gradually
toward the rear of the circle. General Save caught sight of him out of
the corner of his eye.

"Colonel Breyold!" he commanded.

The other halted.

"Come here, sir," commanded the general.

Glancing furtively about him, the other obeyed. The Serbian commander
turned to another of his officers.

"Relieve Colonel Breyold of his sword," he commanded.

Without waiting to see that his command was carried out, he stepped close
to Dellse. The other gave way before him and with a sudden movement
produced a revolver.

Before those nearby could interfere, he had raised the weapon and pulled
the trigger. There was a sharp report, a flash of fire, and when the
smoke had cleared away, Dellse and General Save were locked in each
other's embrace, struggling furiously.

With loud cries other Serbian officers jumped forward and separated the
combatants. Dellse's weapon was wrested from his grasp and in a moment he
was powerless.

"Are you hurt, sir?" asked one of the officers anxiously of the general.

"No," was the reply.

With a gesture of his arm, he indicated the two traitors. "Take them out
and shoot them immediately!" he ordered.

CHAPTER XXI.

ACROSS MACEDONIA.

"No," said Hal, "I am afraid to take a chance with our old airplane. It
hasn't been gone over thoroughly yet. If General Save is anxious for us
to go at once, Chester, you and Colonel Anderson go on ahead. I'll look
our