He led his companion across a narrow bridge, over a strip of sward at the other side of the river, and into a grove of fir which presently deepened and thickened as it spread up a gently shelving hillside. The lights of the town behind them disappeared; the gloom increased; presently they were alternately crossing patches of moonlight and plunging into expanses of blackness. And Betty, after stumbling over one or two of the half-exposed roots which lay across the rough path, slipped a hand into Neale's arm.

"You'll have to play guide, Wallie, unless you wish me to break my neck," she laughed. "My town eyes aren't accustomed to these depths of gloom and solitude. And now," she went on, as Neale led her confidently forward through the wood, "let's talk some business. I want to know about those two—the Chestermarkes. For I've an uneasy feeling that there's more in this affair than's on the surface, and I want to know all about the people I'm dealing with. Just remember—beyond the mere fact of their existence and having seen them once or twice, years ago, I don't know anything about them. What sort of men are they—as individuals?"

"Queer!" replied Neale. "They're both queer. I don't know much about them. Nobody does. They're all right as business men, much respected and all that, you know. But as private individuals they're decidedly odd. They're both old bachelors, at least Gabriel's an old one, and Joseph is a youngish one. They live sort of hermit lives, as far as one can make out. Gabriel lives at the old house which I'll show you when we get out of this wood—you'll see the roofs, anyhow, in this moonlight. Joseph lives in another old house, but in the town, at the end of Cornmarket. What they do with themselves at home, Heaven knows! They don't go into such society as there is; they take no part in the town's affairs. There's a very good club here for men of their class—they don't belong to it. You can't get either of 'em to attend a meeting—they keep aloof from everything. But they both go up to London a great deal—they're always going. But they never go together—when Gabriel's away, Joseph's at home; when Joseph's off, Gabriel's on show. There's always one Mr. Chestermarke to be found at the bank. All the same, Mr. Horbury was the man who did all the business with customers in the ordinary way. So far as I know banking," concluded Neale, "I should say he was trusted and confided in more than most bank managers are."

"Did they seem very much astonished when they found he'd gone?" asked Betty. "Did it seem a great shock, a real surprise?"

"The cleverest man living couldn't tell what either Gabriel or Joseph Chestermarke thinks about anything," answered Neale. "You know what Gabriel's face is like—a stone image! And Joseph always looks as if he was sneering at you, a sort of soft, smiling sneer. No, I couldn't say they showed surprise, and I don't know what they've found out—they're the closest, most reserved men about their own affairs that you could imagine!"

"But—they say some of their securities are missing," remarked Betty. "They'll have to let the exact details be known, won't they?"

"Depends—on them," replied Neale. "They'll only do what they like. And they don't love you for coming on the scene, I assure you!"

"But I'm here, nevertheless!" said Betty. "And here I stop! Wallie, haven't you got even a bit of a theory about all this!"

"Can't say that I have!" confessed Neale woefully. "I'm not a very brilliant hand at thinking. The only thing I can think of is that Mr. Horbury, knowing Lord Ellersdeane had got home on Saturday, thought he'd hand back those jewels as soon as possible, and set off in the evening with that intention—possibly to be robbed and murdered on the way. Sounds horrible—but honestly I can't think of any other theory."

Betty involuntarily shivered and glanced about her at the dark cavernous spaces of the wood, which had now thickened into dense masses of oak and beech. She took a firmer grip of Neale's arm.