He had remarkable control of himself, and watched his chance. It came in a short time, and again he twisted the sword from Marline's hand.
Marline fell back before Merriwell's half-lifted sword.
"Kill me!" he passionately cried. "Kill me now, or I'll kill you!"
Merriwell lowered his blade.
In a moment Marline sprang to the spot where his sword had fallen, caught it up, and turned on Frank again.
"On guard!" he shouted.
Like a whirlwind, he came at Merriwell.
Clash! clash! clash! It was a terrific battle now. The young surgeon was excited and frightened.
"It must be stopped!" he cried. "Marline is determined to kill him! We must stop it!"
Snap!—Frank Merriwell's blade broke within a foot of the hilt!