John Silence leaned forward a moment and took the speaker’s hand and held it in his own for a few brief seconds, closing his eyes as he did so. He was not feeling his pulse, or doing any of the things that doctors ordinarily do; he was merely absorbing into himself the main note of the man’s mental condition, so as to get completely his own point of view, and thus be able to treat his case with true sympathy. A very close observer might perhaps have noticed that a slight tremor ran through his frame after he had held the hand for a few seconds.

“Tell me quite frankly, Mr. Pender,” he said soothingly, releasing the hand, and with deep attention in his manner, “tell me all the steps that led to the beginning of this invasion. I mean tell me what the particular drug was, and why you took it, and how it affected you⁠—”

“Then you know it began with a drug!” cried the author, with undisguised astonishment.