For a moment even Diana looked nonplussed. Then she laughed gaily. "I ought to have been down to introduce you properly," she said. "Let me do so now. Cousin David, this is Mrs. Marmaduke Vane. Chappie dear, may I present to you my cousin, David Rivers?"

David never knew why the floor did not open and swallow him up! He looked helplessly at Diana, and hopelessly at the plump lady on the sofa, whose wrathful glance withered him.

Diana flew to the rescue. "Now, Chappie dear," she said, "the motor is at the door, and Marie has your fur cloak in the hall. Remember me to the Brackenburys, and don't feel obliged to come away early if you are enjoying the games after dinner. The brougham will call for you at eleven; but James can put up, and come round when you send for him. If I have gone up when you return, we shall meet at breakfast." She helped the plump lady to her feet, and took her to the door. "Good-bye, dear; and have a good time."

She closed the door, and came back to David, standing petrified on the hearthrug.

"Mrs. Vane is my chaperon," she explained. "That is why I call her 'Chappie.' But—tell me, Cousin David; do you always call elderly ladies by their rather private pet-names, in the first moments of making their acquaintance?"

"Heaven help me!" said poor David, ruefully, "I thought 'Chappie' was the poodle."

Diana's peals of laughter must have reached the irate lady in the hall. She sank on to the sofa, and buried her golden head in the cushions.

"Oh, Cousin David!" she said. "I always knew you were unlike anybody else. Did you see the concentrated fury in Chappie's eye? And shall we improve matters by explaining that you thought she was the poodle? Oh, talk of something else, or I shall suffocate!"

"But you said: 'There will only be myself and Chappie; and Chappie doesn't count,'" explained David. "If that was 'Chappie,' she counts a lot. She looked me up and down, until I felt positively cheap; and she asked me whether I was your missionary. I made sure she was a duchess, at the very least."

"That only shows how very little experience you have had of duchesses, Cousin David. If Chappie had really been a duchess, she would have made you feel at home in a moment, and I should have found you seated beside her on the sofa talking as happily as if you had known her for years. Chappie has a presence, I admit; and a ducal air; which is partly why I keep her on as chaperon. But she says: 'D'y do,' and looks down her nose at you in that critical manner, because her father was only a doctor in a small provincial town."