All this had taken considerable time, and Miss Selby was nowhere to be seen. He hurried after her and, turning the corner at the foot of the hill, saw her marching briskly along ahead of him. She must have known that he would follow, yet she did not look back once, and when he reached her side she said nothing—neither did he. They went on.

Presently Miss Selby began to talk, making a very obvious effort to be polite. Mr. Anderson did not like this, but he, too, made an equally obvious effort at politeness, and succeeded quite as well as she did, and they continued in this formal, almost stately tone, for some time.

When she looked back upon it, Miss Selby was always at a loss to understand just how and when this correct tone had vanished from their conversation, and the quarrel had begun. For it was a quarrel—a genuine and a hearty one. And although Mrs. Granger was never once mentioned, yet the quarrel was about her.

Miss Selby declared flatly that dogs did not have any “wonderful instinct” for judging people. Mr. Anderson said he knew they did.

“What?” she cried. “You don’t mean to say you think a dog knows by instinct whether any one is—good or bad?”

“That’s exactly what I do mean,” he declared.

Then Miss Selby laughed. She regretted it afterward, but it was done. She had laughed at Mr. Anderson, and he resented it, deeply.

They walked side by side for half a mile, and never said one single word, and by the time they reached the boarding house they had firmly established that worst of all complications, an angry silence. It was now impossible for either of them to speak.

IV

It was impossible to break that silence without an intolerable sacrifice of pride. Yet, so very, very small a thing would have sufficed; one entreating glance from Mr. Anderson, and Miss Selby would have responded willingly; just a shade of warmth in her smile, and the young man would have made an impetuous apology. But he was not going to give entreating glances to persons who laughed at him, and her smile showed no warmth at all, but instead an extreme chilliness.