With a glance of sullen resentment Billings answered:
"At their house."
"Yes, Mr. Billings," and Clara smiled as if she were not in the least annoyed, "but that isn't telling where. I didn't ask for the street and number. Why should I? It was in Cambridge, was it not?"
After the slightest perceptible hesitation, Billings answered:
"No; 'twas in the West End."
"Ah, then you had come over Beacon Hill on your way somewhere. Where were you going, Mr. Billings?"
As Billings hesitated more noticeably, she continued:
"Do you have some regular place where you wait for passengers, or do you drive about picking them up where you find them?"
"I was going to the Old Colony Depot," said Billings, huskily.