teen numbers to investigate. Now, if the young lady wanted help badly enough to appeal to a casual stranger, and for that purpose tried to communicate her telephone number, it must have been that she was going directly home, and wanted a quick reply. As she was on a subway express at Thirty-third Street, then it couldn't have been either of the Chelsea, Gramercy, Madison Square, Spring, or Stuyvesant districts. The subway does not go near the Harlem, Melrose, Lenox, Tremont, Westchester, or Williamsbridge sections. Let's see, then, what is left: Audubon, Bryant, Columbus, Kingsbridge, Morningside, Riverside, and Murray Hill. Ring up Mr. Potter in the advertising department of the telephone company, and tell him I'd like to find the names and addresses of number 3324 in each of those seven exchanges."
Valeska left the studio on this errand, and, as no client appeared, Astro picked up his Paracelsus and went on with his reading. He had finished the chapter on Aqueous Vapors when she returned. He took up her memorandum and looked it over. The Audubon and Kingsbridge addresses he eliminated, for the present, these being apartment-houses with private exchanges. The Social Register enabled him to identify the persons in the Morningside, Plaza, and Riverside districts. There were left only three addresses, as follows:
(Bryant, 3324) H. J. Cook, 199 West Forty-fifth Street.
(Columbus, 3324) Peter J. Manning, 521 West Seventy-third Street.
