“Oh, it was simple enough,” the solicitor answered, speaking very slowly. “He—he just came in for a smoke and a chat.”

“Baxter, that’s a lie, and you know it. What was it that he refused to do?”

The other man flushed a dusky crimson. “I’d asked him,” he stammered, “to help me to float a little syndicate I was interested in. He said solicitors ought not to gamble, and so he declined to have anything to do with it.”

From his half-closed eyes Tempest watched the other as he had invented the story. He felt certain the tale was perfectly untrue, and that the solicitor was hiding something. What was that something?

Thinking it all out quietly afterwards, Tempest came to the conclusion that, whether Baxter were innocent or guilty, probably the interview with Sir John had no relation to his murder. Presuming that it had, the motive for the crime was the desire to profit financially by Sir John’s death. The only financial matter that could possibly be on the tapis, and be in issue between Baxter and Sir John, involved the supposition that Baxter had forged Sir John’s signature and that Sir John had found this out. Because the Deverell bill had been taken up and settled, that matter was closed. But the two had parted on quite friendly terms, an impossible supposition if the one had discovered that the other had forged his name. There might be—as there probably were—many private matters which Sir John and his partner could have been discussing which had no relation to the crime. But supposing Baxter’s story were true as regards his interview with Lord Deverell, then there was fraud regarding the inception of the matter in the forgery of the letter on the strength of which the bill had been discounted.

Assuming that fraud, how had Lord Deverell ever got to know of the existence of the bill? Isaacson’s had admitted they did not communicate with him. And why had he wished to take up the bill? His desire to do so was an admission of the signature. Yet why, if that were so, had Lord Deverell troubled to forge a letter from his own solicitors? His own name was on the bill, so there could be no question of an attempt to cover up his identity of his participation in the matter. His interest in it being admitted, it would have been simple enough for him to get it discounted by his own bank, or even by Isaacson’s, who would have jumped at the chance of temporarily obliging a person of his financial stability, even supposing it to be necessary for him to draw a bill at all. There were all these improbabilities in the way of accepting Baxter’s own story. On the other hand, the prosecution alleged that Baxter had himself forged the bill, and written the letter bearing his firm’s name, and then had himself taken the bill up to prevent its presentation. Against that supposition there was only the character of Arthur Baxter. And if Baxter would forge one bill he would forge another. He would know the signatures of both Lord Deverell and Sir John.

But then—and the thought flashed across Tempest’s brain—so would any of the clerks in the office. They could get at the key of the office. It was by no means unlikely that one of them might have had access to Baxter’s rooms. Picking up the telephone, he at once rang up the Exchange and asked to be put on the number which he knew was that of the solicitor’s flat.

“That you Bailey?—I’m Mr. Tempest. Have any of the clerks from the firm’s offices ever been down to Mr. Baxter’s in his absence?—Just ask your wife then.—Yes?—Which of them—Smith, do you say?—When did he come?—Can she fix the day?—What excuse did he give?—Was he allowed to go in?—Oh no, I don’t blame her—of course she knew who Smith was.—Tell her not to say anything.”

Tempest put down the receiver, and sat at his table, puzzled and worried to distraction. Should he have Smith arrested? To all intents and purposes, the evidence against Baxter and Smith was practically the same. If the revolver was found in the suit-case of the former, the latter had had an opportunity of putting it there, and, to all intents and purposes, was the only person who, as far as he could see, had had such an opportunity.

But he felt certain that no jury would convict Smith, and release Baxter, on the evidence as it stood. Smith had had a perfect alibi at the inquest. He had been at home all the evening. Both his father and his brother had given evidence of it, and other evidence was offered, as a party had been taking place at their house that night. Still, they had Smith’s admission that, save Sir John, he was the last to leave, and he might have shot Sir John before he left. If Smith were guilty, he would have to be convicted out of his own mouth, and Tempest believed this would be easier to do, when cross-examining him as a witness, than if he were a prisoner. One can go to greater lengths with a witness than one can in cross-examining a prisoner. Decency compels a prisoner to be given fair play, and a judge would take good care he had it. Picking up a pen, Tempest wrote a note to the inspector: