"Really, do you honestly think that Mr. Boyne is concealing somebody here?" asked the girl anxiously.
"Everything points to it—a light in the room, and a clock."
"But why should he pay visits to him in disguise?"
"Ah! That's quite another matter. We have yet to discover the motive. And we can only do so by watching vigilantly."
Then he described to her how he had pulled away the mat from before the door, and how the light had been revealed.
"Well," exclaimed the girl. "I'm greatly puzzled over the whole affair. May I not be frank with auntie, and tell her what we suspect?"
"By no means," he answered. "It would be most injudicious. It would only alarm her, and upset any plans we may make."
"I wonder who can really be up there?"
"Some very close friend of this Mr. Boyne, without a doubt. He must have some strange motive for concealing him."
"But if he's a friend, why does he disguise himself when he visits him?" queried the girl.