"What do you think?"

Carrington shook his head, his eyes still gazing dreamily upwards.

"I wish to Heaven I knew what to think!" he murmured; and then he resumed a brisker air and continued, "I am ready to suspect Simon Rattar of any crime in the calendar—leaving out petty larceny and probably bigamy. But he's the last man to do either good or evil unless he saw a dividend at the end, and where does he score by taking any part or parcel in conniving at or abetting or concealing evidence or anything else, so far as this particular crime is concerned? He has lost his best client, with whom he was on excellent terms and whose family he had served all his life, and he has now got instead an unsatisfactory young ass whom he suspects, or says he suspects, of murder, and who so loathes Rattar that, as far as I can judge, he will probably take his business away from him. To suspect Rattar of actually conniving at, or taking any part in the actual crime itself is, on the face of it, to convict either Rattar or oneself of lunacy!"

"I knew Sir Reginald pretty well," said Ned, "but of course I didn't know much about his business affairs. He hadn't been having any trouble with Rattar, had he?"

Carrington threw him a quick, approving glance.

"We are thinking on the same lines," said he, "and I have unearthed one very odd little misunderstanding, but it seems to have been nothing more than that, and, apart from it, all accounts agree that there was no trouble of any kind or description."

He took a cigarette out of his case and struck a match.

"There must be some motive for everything one does—even for smoking this cigarette. If I disliked cigarettes, knew smoking was bad for me, and stood in danger of being fined if I was caught doing it, why should I smoke? I can see no point whatever in Rattar's taking the smallest share even in diverting the course of justice by a hair's breadth. He and you and I have to all appearances identical interests in the matter."

"You are wiser than I am," said Ned simply, but with a grim look in his eye, "but all I can say is I am going out with my gun to look for Simon Rattar."

Carrington laughed.