"I feel pretty certain of it," Ruth replied. "And you will be sure later on to find that he had a hand in the purchase of the other cigar-case from Walen's. Go to Marley's and get him to make inquiries as to whether or not Walen's got their case down on approval."

David proceeded to do so without further delay. Inspector Marley was out, but David left a message for him. Would he communicate by telephone later on? Steel had just finished his dinner when Marley rang him up.

"Are you there? Yes, I have seen Walen. Your suggestion was quite right. Customer had seen cigar-case exactly like it in Lockhart's, only too dear. Walen dealt with some manufacturers and got case down. Oh, no, never saw customer again. That sort of thing happens to shopkeepers every day. Yes. Walen thinks he would recognise his man again. Nothing more? Good-night, sir."

CHAPTER XLI

A DELICATE ERRAND

It looked like being a long, dull evening for Steel if he were not going to the theatre or anything of that kind. He generally read till about eleven o'clock, after which he sat up for another couple of hours plotting out the day's task for to-morrow. To-night he could only wander restlessly about his conservatory, snipping off a dead leaf here and there and wondering where the whole thing was going to end.

With a certain sense of relief David heard the front door-bell trill about eleven o'clock. Somebody was coming to see him, and it didn't matter much who in Steel's present frame of mind. But he swept into the study with a feeling of genuine pleasure as Hatherly Bell was announced.

"My dear fellow, I'm delighted to see you," he cried. "Take the big armchair. Let me give you a cigar and a whisky and soda and make you comfortable. That's better."

"I'm tired out," Bell said. "In London all day, and since six with Cross.
Can you put me up for the night?"

"My bachelor bedroom is always ready, Bell."