"I—I don't know," she hesitated. "Shuffling" her husband always called it. She had been a buffer between father and son since Dick was a child.

"Why don't you know? Who let him in?"

She sighed. The secret had long weighed upon her, and she felt it would come out at some hapless moment.

"He has a key," she said at last.

The old man glared in speechless amazement. In his angriest mood he had never suspected anything so bad as this.

"A key! How long has he had a key?"

"About six months. He did not want to disturb us."

"He is very thoughtful! Where does he spend his nights?"

"I don't know. He told me he belongs to a club, where he takes some kind of exercise."

"Did he tell you he exercised with cards? Did he say it was a gambling club?"