"Now this," he began, in a very unconcerned voice, as if the patient were a toad, "is a most unwonted turn for the disease to take.

It occurs very seldom.

In point of fact, I have only observed the symptom once before; and then it was fatal.

The patient in that instance"-- he paused dramatically--"was the notorious poisoner, Dr.
Yorke-Bannerman." As he uttered the words, Hilda Wade's hands trembled more than ever, and with a little scream she let the basin fall, breaking it into fragments.
Sebastian's keen eyes had transfixed her in a second.

"How did you manage to do that ?" he asked, with quiet sarcasm, but in a tone full of meaning.
"The basin was heavy," Hilda faltered.