They climbed several marble stairways, crossed a rotunda, and entered a room—a sort of library. Beyond was a door which bore the inscription:

ASSISTANT CURATOR

"Now," said the Tracer of Lost Persons in a low voice to Captain Harren, "I am going to ask you to sit here for a few minutes while I interview the assistant curator. You don't mind, do you?"

"No, I don't mind," said Harren wearily, "only, when are we going to begin to search for—her?"

"Very soon—I may say extremely soon," said Mr. Keen gravely. "By the way, I think I'll take that sheet of paper on which I copied the cipher. Thank you. I won't be long."

The attendant had vanished. Captain Harren sat down by a window and gazed out into the late afternoon sunshine. The Tracer of Lost Persons, treading softly across the carpeted floor, approached the sanctuary, turned the handle, and walked in, carefully closing the door behind him.

There was a young girl seated at a desk by an open window; she looked up quietly as he entered, then rose leisurely.

"Miss Inwood?"

"Yes."

She was slender, dark-eyed, dark-haired—a lovely, wholesome young creature; gracious and graceful. And that was all—for the Tracer of Lost Persons could not see through the eyes of Captain Harren, and perhaps that is why he was not able to discern a miracle of beauty in the pretty girl who confronted him—no magic and matchless marvel of transcendent loveliness—only a quiet, sweet-faced, dark-eyed young girl whose features and figure were attractive in the manner that youth is always attractive. But then it is a gift of the gods to see through eyes anointed by the gods.