"And why," she inquired with what she intended to be withering sarcasm,
"have I been selected so suddenly for this important work?"

"I heard the address you gave, that's why," he answered. "That's what
makes it so important that you should go to that number at once. Ask for
Mr. Fleck."

"I can't go," she temporized. "I am on my way now to meet my mother at
the Ritz."

"Go to-morrow, then," he insisted. "I'll see Mr. Fleck meanwhile and
tell him about you."

Puzzled at the man's unusual and wholly preposterous request, yet in
spite of herself impressed by his evident sincerity, Jane turned the
card nervously in her hand and discovered some small characters on the
back; "K-15" they read.

"What do those figures mean?" she asked.

"I can't tell you that. Mr. Fleck will explain everything. Promise me
you will go to see him."

"Who are you?"

"I can't tell you that, yet."

"Who, then, is Mr. Fleck?"