As Frank entered, the girl extended her hand to him, saying:

“I am glad to see you again, Mr. Merriwell. Have you forgotten me?”

“Good gracious!” cried Merriwell. “It is Vida Milburn!”

She tossed her head, her hand dropping by her side.

“That is not complimentary to me!” she exclaimed. “It shows you remembered my half-sister far better than you did me.”

“Your half-sister? Then you are not Vida!”

“No, thank you!”—with another haughty toss of the head.

“Then—then you must be—Isa Isban!”

“How remarkable that you should guess it,” she said, with biting sarcasm.

“But—you—you must remember it has been some time since I saw you, and—and I saw Miss Melburn last.”