“If this boy is the one whom that man wants he’ll show his hand sooner or later. He was taken by surprise when he found that we had him, and he didn’t know what to say. But he won’t disappear altogether—not while the lad is with us. He’ll come around again. Now you stay with me.”
“All right,” assented Andy, but with no very good grace. “I’m going to holler after him, anyhow.”
Then, before Frank could stop him, had he been minded to do so, Andy raised his voice in a shout:
“Hey, where are you going? Don’t you want to send some word to that boy we rescued?”
The man turned half around, and for a moment Andy and Frank hoped he would come back. Instead he shouted something that sounded like:
“Important business—see—later—don’t bother me.”
“Humph!” exclaimed Andy, as the man resumed his rapid walk. “We’re not going to bother you. But we’ll solve that mystery, whether you want us to or not,” he added firmly. “Won’t we, Frank?”
“If it’s possible. I’m almost ready to go out now and have a search for the motor boat, but I think we’d better go back and tell him what happened.”
“Tell who, the doctor?”
“No, this lad—the one who’s at our house. He may know the man when we describe him.”