“What about?” interrupted the doctor himself, pouncing in upon us, and catching the words as he opened the door. “What have you to tell Dr. Knox about, Sam? And why are all you young men sitting up here? You’d be better in bed.”

The last straw, you know, breaks the camel’s back. Whether Sam would really have disclosed the matter to Dr. Knox, I can’t say; the doctor’s presence and the doctor’s question decided it.

Sam spoke in a low tone, standing behind the drug-counter with the doctor, who had gone round to look at some entry in what they called the day-book, and had lighted a gas-burner to do it by. Dr. Knox made no remark of any kind while he listened, his eyes fixed on the book: one might have thought he did not hear, but his lips were compressed.

“If she were not so young, sir—a child, as may be said—I should not have presumed to speak,” concluded Sam. “I don’t know whether I have done wrong or right.”

“Right,” emphatically pronounced the doctor.

But the word had hardly left his lips when there occurred a startling interruption. The outer door of the surgery, the one he had come in by, was violently drummed at, and then thrown open. Charlotte Knox, Miss Mack the governess, and Sally the maid—the same Sally who had been at Rose Villa when the trouble occurred about Janet Carey, and the same Miss Mack who had replaced Janet—came flocking in.

“Dicky’s lost, Arnold,” exclaimed Charlotte.

“Dicky lost!” repeated Dr. Knox. “How can he be lost at this time of night?”

“He is lost. And we had nearly gone to bed without finding it out. The people had all left, and the doors were locked, when some one—Gerty, I think—began to complain of Dicky——”

“It was I who spoke,” interposed the governess; and though she was fat enough for two people she had the meekest little voice in the world, and allowed herself to be made a perfect tool of at Rose Villa. “Dicky did behave very ill at supper, eating rudely of everything, and——”