"A handkerchief?" questioned Kent as the detective did not unfold
the white muslin, but held it with care.

"Yes. One of the prisoners in the cage told me Turnbull dropped it
as Dr. Stone and the deputy marshal carried him into the ante-room.
Smell anything?" holding up the handkerchief.

"Yes." Kent wrinkled his nose and sniffed several times. " Smells
like fruit."

Ferguson nodded. "Good guess; I noticed the odor and went at once
to Dr. McLane. He told me the handkerchief was saturated with
amyl nitrite."

"Amyl nitrite," repeated Kent reflectively. "It is given for angina
pectoris."

"Yes. Well, in this case it was the remedy and not the disease
which killed Turnbull," announced Ferguson triumphantly.

"Nonsense!" ejaculated Kent. "I happen to know that the capsules
contain only three minims - I once heard Turnbull say so."

"True, but Turnbull got a lethal dose, all right; and he thought he
was taking only the regular one. Devilishly ingenious on the part
of the criminal, wasn't it?

"Yes. Have you detected the criminal?" Kent put the question with
unmoved countenance, but with inward foreboding; the detective's