“You’ll find Ardsley’s name pretty prominent in the Whistlefield business when it’s all cleared up, I think. But I’m not prepared at present to say exactly what his part in the affair may turn out to be in the end.”

Wendover was only too glad to let the matter rest at this point. Irresponsible speculation is one thing; speculation which may lead up to a death sentence is something quite different. Suppose his ingenious reasoning—he had to admit that some of it was ingenious—were to lead to a wrongful conviction? He hadn’t quite seen it in that light before. It was all very well for Clinton to go in for theorising. It was his job to find the criminal and convict him. But Wendover had begun to feel that it was hardly for an amateur to step in and take a hand. Why, already he had light-heartedly thrown out suspicions against several people; and obviously some, at least, of these suspicions must be baseless. He would keep out of the field in future, he resolved.

But there was still one point in connection with the Whistlefield case which had given him a good deal of perplexity. It threw no suspicion on anyone. He decided to clear it up if possible.

“There’s one thing I’ve been thinking over,” he began. “Why did you pretend you’d forgotten those darts on the museum mantelpiece, when all the time you’d left them there deliberately? You acted the part pretty well, Clinton. You took me in completely at the first rush. I thought it was real vexation over a genuine mistake. But when I’d had time to think about it, I saw plainly enough that you’d done it on purpose. You’re not the sort that makes silly mistakes of that kind.”

Sir Clinton came out of his reserve at once.

“I’m not fooling now, Squire,” he said gravely. “I’m absolutely serious. I’ve staked my main case on that affair. I’m not able to tell you how or why at present. But you mustn’t breathe a word about it to a living soul, no matter what happens next.”

Wendover, in that moment, had a glimpse of a rarely-displayed side of Sir Clinton’s character. It convinced him, without further argument.

“Very good. Nobody will learn it from me.”

“You may find it pretty difficult to hold your tongue, Squire; but I trust you to do it. The temptation will probably be very strong before long. I’m hoping for the best; but I warn you that I’m expecting some pretty black work at Whistlefield before we’re through with this business. I couldn’t help seeing the funny side of Ernest Shandon’s affair; but the next one may not have much fun about it. You can take my word for it that Tragedy’s in the wings, now, waiting for its cue. So, no matter what happens, keep a tight grip on your tongue. You’re the only one who could spot that I was acting then. Nobody at Whistlefield knows anything about me. They took me for a blundering idiot. And that’s precisely what I wanted.”

Chapter XII.
The Fourth Attack