"It may be a more difficult task than I at first believed," her father remarked, frowning. "I know that Rap Molberg is hiding somewhere in the city but so far none of my investigators have been able to trace him."
"Perhaps he's through causing trouble," Penny said hopefully.
"He'll make enough when the time comes."
"I've not heard of any automobile thefts or anything of the sort for several days."
"That's just it. Things have been altogether too quiet. It's like a lull before the storm. A bad sign."
Mr. Nichols abruptly left the table. He walked to the door, then came back.
"I must go downtown again this evening, Penny," he said regretfully. "I'll leave the telephone number of my new office in the event you should need to reach me. It isn't listed in the 'phone book,' of course."
"Your new office?" Penny demanded. "What became of your old one, may I ask?"
"It's still there," Mr. Nichols smiled. "Miss Arrow has assumed charge, and I've taken up temporary quarters on the tenth floor of the Atler building."
"Isn't that almost directly across from the Brunner garage?"