but Callie insisted that she must go. When they left they promised faithfully to pay another visit in the near future. Only once again was the subject that was nearest their hearts brought up, and that was when Mrs. Robinson drew Frank to one side as he was leaving.
"Promise me one thing," she said. "Let me know as soon as your father returns—if he has any news."
"I'll do that, Mrs. Robinson," agreed the boy. "I know what this suspense must be like for you."
"It's terrible. But as long as Fenton Hardy is working on the case I'm sure that it will be cleared up if it is humanly possible."
And with that, the matter rested. Callie was unusually silent all the way home. It was evident that she had been profoundly affected by the change that the Tower Mansion mystery had caused in the lives of the Robinsons. Naturally sympathetic and tender-hearted, she felt keenly the injustice of it all, and she realized even more than Frank what it had meant to Mrs. Robinson and the girls to move from their comfortable home in the Mansion to the squalid and distant part of the city in which they now lived.
Callie lived but a few blocks away from the Hardy home, and Frank accompanied her to the gate.
