“Now, in these two specimens of handwriting which we have enlarged it is plain that the writers of both of them suffered from a certain peculiar disease of the heart.  Moreover, I am prepared to show that the pulse beats exhibited in the case of certain pen-strokes in one of these documents are exhibited in similar strokes in the other.  Furthermore, I have ascertained from his family physician, whose affidavit I have here, that Mr. Bisbee did not suffer from this or any other form of heart disease.  Mr. Caswell-Jones, in addition to wiring me that he refused to write Bridget Fallon a recommendation after the typhoid broke out in his country house, also says he does not suffer from heart disease in any form.  From the tremulous character of the letters and figures in both these documents, which when magnified is the more easily detected, I therefore conclude that both are forgeries, and I am ready to go farther and say that they are forgeries from the same hand.

“It usually takes a couple of weeks after infection for typhoid to develop, a time sufficient in itself to remove suspicion from acts which might otherwise be scrutinised very carefully if happening immediately before the disease developed.  I may add, also, that it is well known that stout people do very poorly when they contract typhoid, especially if they are old.  Mr. Bisbee was both stout and old.  To contract typhoid was for him a virtual death-warrant.  Knowing all these facts, a certain person purposely sought out a crafty means of introducing typhoid fever into Mr. Bisbee’s family.  That person, furthermore, was inoculated against typhoid three times during the month before the disease was devilishly and surreptitiously introduced into Bisbee Hall, in order to protect himself or herself should it become necessary for that person to visit Bisbee Hall.  That person, I believe, is the one who suffered from an aneurism of the heart, the writer, or rather the forger, of the two documents I have shown, by one of which he or she was to profit greatly by the death of Mr. Bisbee and the founding of an alleged school in a distant part of the country—­a subterfuge, if you recall, used in at least one famous case for which the convicted perpetrator is now under a life sentence in Sing Sing.

“I will ask Dr. Leslie to take this stethoscope and examine the hearts of everyone in the room and tell me whether there is anyone here suffering from an aneurism.”

The calcium light ceased to sputter.  One person after another was examined by the health commissioner.  Was it merely my imagination, or did I really hear a heart beating with wild leaps as if it would burst the bonds of its prison and make its escape if possible?  Perhaps it was only the engine of the commissioner’s machine out on the campus driveway.  I don’t know.  At any rate, he went silently from one to the other, betraying not even by his actions what he discovered with the stethoscope.  The suspense was terrible.  I felt Miss Bisbee’s hand involuntarily grasp my arm convulsively.  Without disturbing the silence, I reached a glass of water standing near me on Craig’s lecture-table and handed it to her.