"No, Penny, I will not. You seem to forget that we're guests of Mrs. Dillon."
"Yes, but if she has the stolen Rembrandt in her possession, isn't it our duty to notify the police?"
"Do you know that she has the stolen painting?"
"No, in fact I rather suspect she's been cheated by a dishonest dealer."
"In that event, you'd only stir up a hornet's nest without doing a particle of good. In fact, exposing Mrs. Dillon might give the real thief a warning to lie low."
"How do you mean, Dad?"
"Why, the moment Mrs. Dillon is arrested, the dealer from whom she purchased the picture will disappear. Then there will be no way to trace the real thief."
"You're assuming that the dealer and the thief worked together even though the painting which Mrs. Dillon bought may have been a fake."
"It's quite possible, Penny. Some day when the time is more opportune, I'll explain to you how picture thieves work their racket. For the moment I wish you'd accept my opinion that this case is packed with dynamite. My advice to you is to be very sure of what you're doing before you start any action."
"I guess you're right," Penny agreed. "I'll not do anything rash."