"Hurt yourself?" he demanded.
"I skinned my knee. Where's our man?"
"He got away in the crowd."
"We're a couple of fine ones," exclaimed Hugh disgustedly.
"We certainly are," echoed Bob. "I'm getting so I'm ashamed to see father; all I do is report failures to him."
"We'd better go back to the office and see him though."
They returned to the office and at the door met Mr. Cook coming out. He greeted the boys heartily, for he had been worried about them.
"I'm glad to see you two," he exclaimed. "I was afraid something had happened to you."
"Oh, we're all right," said Bob. "Where's Lena?"
"What do you mean?" demanded his father. "I haven't seen her."