"Take your time," remarked Drillford. "Anything you can suggest, you know—"
"Well," replied Viner. "I'd an idea at the moment, and I've had it since, that I'd seen this man before. Something in his face was familiar. The only thing I can think of is this: I potter round old bookshops and curiosity-shops a good deal—I may have seen this young fellow on some occasion of that sort."
"Anyway," suggested Drillford, glancing over the particulars which he had written down, "you'd know him again if you saw him?"
"Oh, certainly!" asserted Viner. "I should know him anywhere."
"Then that's all we need trouble you with now, sir," said Drillford. "The next business will be—tomorrow."
Viner walked slowly out of the police-station and still more slowly homeward. When he reached the first lamp, he drew out his watch. Half-past twelve! Just two hours ago he had been in his own comfortable library, smiling at Miss Penkridge's ideas about the very matters into one of which he was now plunged. He would not have been surprised if he had suddenly awoke, to find that all this was a bad dream, induced by the evening's conversation. But just then he came to the passage in which the murder had been committed. A policeman was on guard at the terrace end—and Viner, rather than hear any more of the matter, hastened past him and made a circuitous way to Markendale Square.
He let himself into his house as quietly as possible,
