"You don't understand this kind of case," Bell interrupted. "I do."

Walker dropped aside with a muttered apology. Bell approached the figure in the doorway and whispered a few words rapidly in her ear. The effect was electrical. The figure seemed to wilt and shrivel up, all the power and resistance had gone. She stepped aside, moaning and wringing her hands. She babbled of strange things; the old, far-away look came into her eyes again.

Without a word of comment or sign of triumph Bell entered the sick room. Then he raised his head and sniffed the heavy atmosphere as an eager hound might have done. A quick, sharp question rose to his lips, only to be instantly suppressed as he noted the vacant glance of his colleague.

The white figure on the bed lay perfectly motionless. It was the figure of a young and exceedingly beautiful girl, a beauty heightened and accentuated by the dead-white pallor of her features. Still the face looked resolute and the exquisitely chiselled lips were firm.

"Albumen," Bell muttered. "What fiend's game is this? I wonder if that scoundrel—but, no. In that case there would be no object in concealing my presence here. I wonder—"

He paused and touched the pure white brow with his fingers. At the same moment Enid came into the room. She panted like one who has run fast and far.

"Well," she whispered, "is she better, better or—Hatherly, read this."

The last words were so low that Bell hardly heard them. He shot a swift glance at his colleague before he opened the paper. One look and he had mastered the contents. Then the swift glance was directed from Walker to the girl standing there looking at Bell with a world of passionate entreaty and longing in her eyes.

"It is your sister who lies there," Bell whispered, meaningly, "and yet you—"

He paused, and Enid nodded. There was evidently a great struggle going on in Bell's mind. He was grappling with something that he only partially understood, but he did know perfectly well that he was being asked to do something absolutely wrong and that he was going to yield for the sake of the girl he loved.