"I'll leave you to puzzle that out, I think," she said. "You're so ingenious, you'll surely hit upon the explanation. I scarcely expected to see you here again," she added. "You thought it worth while to return?"

"Yes; there are one or two points which are not quite clear."

"And you expect to make them so?" she asked, with a mocking smile. "How? By lurking around the house like a thief, and following women?"

There was something in her tone, her look, her attitude, which caught my attention—a sort of confident triumph, as of one who plays for a high stake and wins. She was no longer anxious and perturbed, as she had been the day before—nay, that very morning. She thought it safe to flout me openly.

"So you convinced Mrs. Lawrence that you and your sister were not guilty?" I asked. "But of course you'd do that!"

"Guilty of what?" she demanded, flushing darkly.

"Guilty of causing Miss Lawrence's flight," I answered bluntly. "Of wrecking her life."

"Do you believe that?"

"I know it!"

She laughed scornfully.