“What are you talking about?” Penny demanded in exasperation. “Will you kindly explain?”

“You recall Mr. Gandiss asked me to help him solve the mystery of those brass thefts at the plant.”

“Why, yes, but I didn’t know you had begun to do anything about it.”

“Our plan may not succeed. However, we’re trying out a little idea of mine.”

“Does it have anything to do with that junk shop?”

“Yes, the place was opened yesterday by Heiney Growski.”

Penny’s blue eyes opened wide for she knew the man well. A prominent detective in Riverview, he had won distinction by solving a number of difficult cases.

“Heiney is an expert at make-up and impersonation,” Mr. Parker added. “We brought him here and installed him as the owner of the junk store across the street. His instructions are to buy brass and copper at above the prevailing market prices.”

“You expect employes who may be pilfering metals to seek the highest price obtainable!”

“That’s our idea. It may not work.”