once more brought the machine around to the odd man's house, and stopped it. "What's it for?"
"Oh, I think I'll find a use for it," replied the young inventor. "Will you come back to Shopton with us?"
"No, I must stay here. I have some letters to write. But I'll run over in a few days, and see you. Then I'll go on another trip, if you've got one planed."
"I may have," answered Tom with a laugh. "Good-bye."
He and Ned made a quick flight home, and Tom at once started on making some changes in the motor. He was engaged at this work the next day, when he noticed a shadow pass across an open window. He looked up to see Ned.
"Hello, Tom!" cried his chum. "Have you heard the news?"
"No, what news? Has Andy Foger fallen out of his airship?"
"No, but there are a whole lot of Custom House detectives in town, looking for clews to the smugglers."
"Still at it; eh? Shopton can't seem to keep out of the limelight. Has anything new turned up?"
"Yes, I just met Mr. Whitford. He's back on the case and he has several men with him. They
