She gave a cry and tried to fling him off. Diamond had leaped forward, but Frank recovered and turned before the Virginian could interfere.

Merry saw the girl make a vain attempt to release herself from the grasp of the man, who was a tall, rugged, athletic-looking fellow about twenty-five years of age. Merry did not hesitate a single instant. He quickly snatched the girl from the man’s grasp, swinging her behind him, saying:

“I will protect you.”

The fellow gave an exclamation of fury and sprang toward Frank. Merriwell dodged the fierce blow delivered at his face, and his fist struck the man fairly on the chin, hurling him backward to the pavement. The assailant fell heavily to the hard stones and lay there, stunned for the time.

“That was a clever blow, Merriwell,” observed Diamond, his eyes flashing and his cheeks glowing. “Very much like the one that did McGilvay.”

Frank stepped forward and stood looking down at the man, who had the appearance of a countryman.

“I hope he is not severely injured,” said Merry. “He met my blow, which made it all the heavier.”

“Don’t worry about the dog,” advised Diamond, with a glance of contempt toward the fallen man.

“He must know the lady,” said Frank, turning about to speak to her.

She was gone. Both Frank and Jack stared in surprise. She had taken advantage of the first opportunity to get away. The Virginian whistled a little.