A DANGEROUS ADMISSION Jennings had once witnessed a drama by Victorien Sardou, entitled--in the English version--Diplomacy.

Therein a woman was unmasked by means of a scent.

It seemed to him that perfume also played a part in this case.

Why should Clancy, Mrs.Herne, Hale, Maraquito and Thomas use a special odor?
"I wonder if they meet in the dark ?" thought the detective, "and recognize each other by the scent.

It seems very improbable, yet I can't see why they use it otherwise.