"Of course you did!" Phil struck in. "But next time, Susan, as a concession to good manners, you might let us know you're in the neighborhood—?"

Susan bit her lower lip very hard before she managed to reply.

"Yes. I will next time. I'm sorry, Phil." (Phil!) Then she turned to Maltby. "But I wasn't spying! I just didn't know you would any of you mind."

"We don't, really," I said. "Sit down, dear. You're always welcome." I had been doing some stiff, concentrated thinking in the last three minutes, and now I had taken the plunge. "The truth is, Susan," I went on, "that most children who live in good homes, who are what is called 'well brought up,' are carefully sheltered from any facts or words or thoughts which their parents do not consider wholesome or pleasant. Parents try to give their children only what they have found to be best in life; they try to keep them in ignorance of everything else."

"But they can't," said Susan. "At least, they couldn't in Birch Street."

"No. Nor elsewhere. But they try. And they always make believe to themselves that they have succeeded. So it's supposed to be very shocking and dangerous for a girl of your age to listen to the free conversation of men of our age. That's the reason we all felt a little guilty, at first, when we found you'd been overhearing us."

"How funny," said Susan. "Papa never cared."

"Good for him!" exclaimed Maltby. "I didn't feel guilty, for one! I refuse to be convicted of so hypocritically squeamish a reaction!"

"Oh!" Susan sighed, almost with rapture. "You know such a lot of words, Mr. Phar! You can say anything."

"Thanks," said Maltby; "I rather flatter myself that I can."