I stared at his face without attempting to answer him. He turned and went towards the door, regarding me oddly over his shoulder. I followed him out with my eyes; and as I did so, by some odd trick of unconscious cerebration, there came surging into my head the phrase, “The Moreau hollows”⁠—was it? “The Moreau⁠—” Ah! It sent my memory back ten years. “The Moreau horrors!” The phrase drifted loose in my mind for a moment, and then I saw it in red lettering on a little buff-coloured pamphlet, to read which made one shiver and creep. Then I remembered distinctly all about it. That long-forgotten pamphlet came back with startling vividness to my mind. I had been a mere lad then, and Moreau was, I suppose, about fifty⁠—a prominent and masterful physiologist, well-known in scientific circles for his extraordinary imagination and his brutal directness in discussion.

Was this the same Moreau? He had published some very astonishing facts in connection with the transfusion of blood, and in addition was known to be doing valuable work on morbid growths. Then suddenly his career was closed. He had to leave England