"Very well then, Gladys," the magnate bowed to his daughter, "I suggest that you plan on being back here at eleven. By that time your French teacher may have something to tell us."

Bowing to them both, he dismissed them with a wave of his hand.

As the neat little town car, which was apparently Gladys Ardmore's exclusive property, hurried them away toward the north side library, Curlie had time to think and to steal a look now and then at his fair hostess.

Matters had been going rather rapidly of late. He found it difficult to keep up with the march of events. What should be his next move? He was torn between two conflicting interests: his loyalty to the radio secret service bureau and his desire to be of service to this girl and her father. The girl, as he stole a glance at her, appeared disturbed and troubled. There was a tenseness about the lines of her mouth, a droop to her eyelids. "For all the world as if she were in some way to blame for what has happened," he told himself.

Instantly the question popped into his mind: "Does she know more than she cares to tell?" He thought of the wireless equipment which had been removed from the wrecked car before the reporters had arrived. The laborer would hardly do that without orders from someone. Who had that someone been? The millionaire had denied all knowledge of the radiophone messages. Curlie believed that he had told the truth. Here was an added mystery. He was revolving this in his mind when the girl spoke:

"It must be very interesting listening in."

"Listening in?" Curlie feigned ignorance of her meaning.

"Yes, isn't that what you do? Listen in on radio all the time?"

Curlie started. How did she know?

"Why, yes, since you've asked, that is my work."