The maid-servant stood on one side to let him pass. Almost at the same
moment, the door of the front room opened and a pleasant-looking elderly
lady appeared.

"I am Mrs. Willet," she announced.

"I am Mr. Quest," the criminologist told her quickly. "You may have heard
your niece, Lenora, speak of me."

"Then perhaps you can tell me what has become of her?" Mrs. Willet
observed.

"Isn't she here?"

Mrs. Willet shook her head.

"I had a telegram from her from New York to say that she was coming, but
I've seen nothing of her as yet."

"You've changed your address, you know," Quest reminded her, after a
moment's reflection.

"I wrote and told her," Mrs. Willet began. "After all, though," she went
on thoughtfully, "I am not sure whether she could have had the letter. But
if she went up to Hampstead, any one would tell her where I had moved to.
There's no secret about me."

"Lenora did go up to 157 Elsmere Road yesterday," Quest told her. "They
gave her your address here, as they have just given it to me."