Pratt moved his chair a little nearer to his visitor.
"Now," he said, speaking very quietly and deliberately, "I'll go through what I have to say to you carefully, point by point. I shall ask you to go back a little way. It is now some time since I discovered a secret about your mother, Mrs. Mallathorpe. Ah, you start!—it may be with indignation, but I assure you I'm telling you, and am going to tell you, the absolute truth. I say—a secret! No one knows it but myself—not one living soul! Except, of course, your mother. I shall not reveal it to you—under any consideration, or in any circumstances—but I can tell you this—if that secret were revealed, your mother would be ruined for life—and you yourself would suffer in more ways than one."
Nesta looked at him incredulously—and yet she began to feel he was telling some truth. And Pratt shook his head at the incredulous expression.
"It's quite so!" he said. "You'll begin to believe it—-from other things. Now, it was in connection with this that I paid a visit to Normandale Grange one evening some months ago. Perhaps you never heard of that? I was alone with your mother for some time in the study."
"I have heard of it," she answered.
"Very good," said Pratt. "But you haven't heard that your mother came to see me at my rooms here in Barford—my lodgings—the very next night! On the same business, of course. But she did—I know how she came, too. Secretly—heavily veiled—naturally, she didn't want anybody to know. Are you beginning to see something in it, Miss Mallathorpe?"
"Go on with your—story," answered Nesta.
"I go on, then, to the day before your brother's death," continued Pratt. "Namely, a certain Friday. Now, if you please, I'll invite you to listen carefully to certain facts—which are indisputable, which I can prove, easily. On that Friday, the day before your brother's death, Mrs. Mallathorpe was in the shrubbery at Normandale Grange which is near the north end of the old foot-bridge. She was approached by Hoskins, an old woodman, who has been on the estate a great many years—you know him well enough. Hoskins told Mrs. Mallathorpe that the foot-bridge between the north and south shrubberies, spanning the cut which was made there a long time since so that a nearer road could be made to the stables, was in an extremely dangerous condition—so dangerous, in fact, that in his opinion, it would collapse under even a moderate weight. I impress this fact upon you strongly."
"Well?" said Nesta.
"Hoskins," Pratt went on, "urged upon Mrs. Mallathorpe the necessity of having the bridge closed at once, or barricaded. He pointed out to her from where they stood certain places in the bridge, and in the railing on one side of it, which already sagged in such a fashion, that he, as a man of experience, knew that planks and railings were literally rotten with damp. Now what did Mrs. Mallathorpe do? She said nothing to Hoskins, except that she'd have the thing seen to. But she immediately went to the estate carpenter's shop, and there she procured two short lengths of chain, and two padlocks, and she herself went back to the foot-bridge and secured its wicket gates at both ends. I beg you will bear that in mind, too, Miss Mallathorpe."