Ethel Hale had spent a whole summer with Nan, and Betty beat her at tennis and called her Ethel, and she called Betty little sister, just as Nan did. But here she was a member of the faculty. "I shall never dare come near her after you leave," said Betty. Just as she said it the door of the room opened--Nan had explained that it was a freshman trick to ring front door-bells--and Ethel rushed out and dragged them in.