Cowan, the doctor, was called, and declared that the stranger had been drugged and was suffering from some narcotic.

The servant who admitted him declared that the man had said he had an appointment with his master, and that no card was necessary.

He, however, gave the name of Chater." "Chater!" I cried, starting up.

"Are you certain of that name ?" "I only know what Cowan told me," was my uncle's reply.

"But do you know him ?" "Not at all.