"So your opinion is—"
"Maître Lepertuis," asked Perenna, turning to the solicitor, "did you notice nothing unusual when you were summoned to Mr. Mornington's death-bed?"
"No, nothing. Mr. Mornington was in a state of coma."
"It's a strange thing in itself," observed Don Luis, "that an injection, however badly administered, should produce such rapid results. Were there no signs of suffering?"
"No … or rather, yes…. Yes, I remember the face showed brown patches which I did not see on the occasion of my first visit."
"Brown patches? That confirms my supposition Cosmo Mornington was poisoned."
"But how?" exclaimed the Prefect.
"By some substance introduced into one of the phials of glycero-phosphate, or into the syringe which the sick man employed."
"But the doctor?" M. Desmalions objected.
"Maître Lepertuis," Perenna continued, "did you call the doctor's attention to those brown patches?"