But just as I was preparing to start for home, an imperative ring called me to the telephone and I heard:
"Halloo! Is this the police-station?"
"It is."
"Well, then, a detective is wanted at once at The Evergreens. He can not be too clever or too discreet. A valuable jewel has been lost, which must be found before the guests disperse for home. Large reward if the matter ends successfully and without too great publicity."
"May I ask who is speaking to me?"
"Mrs. Ashley."
It was the mistress of The Evergreens and giver of the ball.
"Madam, a man shall be sent at once. Where will you see him?"
"In the butler's pantry at the rear. Let him give his name as Jennings."
"Very good. Good-by."