The two had not long to wait. A man entered, cast a piercing glance at the visitor, and took his stand at a corner of the roll-top desk, waiting with an air of deferential attention. He was a man of physique so immense—with such a breadth of shoulders and absence of neck—that his more than average height was much disguised. Above all, he was one whose appearance must attract attention in any gathering of his kind; for even as Lynden seemed to lack those desirable traits, so force and resolution flowed from this man's rugged personality, making their influence felt subtly and insistently. His air of quiet composure was evocative of confidence. Endowed with the impassiveness of an Indian, one could hardly imagine him excited or agitated in any circumstances.

The Chief recognized his presence with a brief nod, and at once addressed Lynden:

"Repeat what you have told me; see if you can't make it plainer."

The visitor recounted the bare facts in a more connected manner. "But I was so shocked," he supplemented, "that I am afraid I can't make myself intelligible. The facts explain nothing to my mind further than that an atrocious murder has been committed, that the victim is still lying in Doctor Westbrook's office, and that no one seems to know who is responsible for the deed."

"You say the man was stabbed?" queried the Chief.

"Yes," was the reply; "stabbed in the throat."

"But I fail to understand," the Chief frowned. "Do you mean to say that a man was stabbed in the presence of Doctor Westbrook, and that he knows nothing about it?"

"No—no. It seems to have occurred in the hall just outside Mobley's door; the man fell through the door into the office, Mobley said. I don't know—I am so confused." Which last statement he confirmed by at once becoming involved in a wild incoherency of utterance.

After he had quieted somewhat, he sat trembling for a moment, suddenly bursting forth again:

"Wait!" he cried, his face lighting. "I forgot to say there was another man present in Doctor Westbrook's office—a stranger to me. I never saw him before."