"5. Parrawhite leaves Pickard to meet Pratt. He did meet Pratt—in Stubbs' Lane. He was seen to go with Pratt into the disused quarry. And there, in my opinion, Pratt killed him—and disposed of his body.
"6. What does Pratt do next? He goes to your office first thing next morning, and removes certain moneys which you say you carelessly left in your desk the night before, and tears out certain cheque forms from your book. When Parrawhite never turns up that morning, you—and Pratt—conclude that he's the thief, and that he's run away.
"7. If you want some proof of the correctness of this last suggestion, you'll find it in the fact that no use has ever been made of those blank cheques, and that—in all probability—the stolen bank-notes have never reached the Bank of England. On that last point I'm making inquiry—but my feeling is that Pratt destroyed both cheques and bank-notes when he stole them.
"8. This man Parrawhite out of the way, Pratt has a clear field. He's got the will. He's already acquainted Mrs. Mallathorpe with that fact, and with the terms of the will—whatever they may be. We may be sure, however, that they are of such a nature as to make her willing to agree to his demands upon her—and, accidentally, to go to any lengths—upon which we needn't touch, at present—towards getting possession of the will from him.
"9. And the present situation—from Pratt's standpoint of yesterday—is this. He's so sure of his own safety that he doesn't mind revealing to the daughter that the mother's in his power. Why? Because Pratt, like most men of his sort, cannot believe that self-interest isn't paramount with everybody—it's beyond him to conceive it possible that Miss Mallathorpe would do anything that might lose her several thousands a year. He argued—'So long as I hold that will, nobody and nothing can make me give it up nor divulge its contents. But I can bind one person who benefits by it—Miss Mallathorpe, and for the mother's sake I can keep the daughter quiet!' Well—he hasn't kept the daughter quiet! She—spoke!
"10. And last—in all such schemes as Pratt's, the schemer invariably forgets something. Pratt forgot that there might arise what actually has arisen—inquiry for Parrawhite. The search for Parrawhite is afoot—and if you want to get at Pratt, it will have to be through what I firmly believe to be a fact—his murder of Parrawhite and his disposal of Parrawhite's body.
"That's all, Mr. Eldrick," concluded Byner who had spoken with much emphasis throughout. "It all seems very clear to me, and," he added, with a glance at Collingwood, "I think Mr. Collingwood is inclined to agree with most of what I've said."
"Pretty nearly all—if not all," assented Collingwood. "I think you've put into clear language precisely what I feel. I don't believe there's a shadow of doubt that Pratt killed Parrawhite! And we can—and must—get at him in that way. What do you suggest?" he continued, turning to Byner. "You have some idea, of course?"
"First of all," answered Byner, "we mustn't arouse any suspicion on Pratt's part. Let us work behind the screen. But I have an idea as to how he disposed of Parrawhite, and I'm going to follow it up this very day—my first duty, you know, is towards the people who want Parrawhite, or proof of his death. I propose to——"
Just then Collingwood's clerk came in with a telegram.