Mrs. Hill kept a small confectionery shop adjoining a cinema theatre to supplement her husband's wages by a little earnings of her own in order to support her child. Although the shop was an unpretentious one, and catered mainly for the ha'p'orths of the juvenile patrons of the picture house next door, it was called "The Camden Town Confectionery Emporium," and the title was printed over the little shop in large letters. Inspector Chippenfield walked into the empty shop, and rapped sharply on the counter.

A little thin woman, with prematurely grey hair, and a depressed expression, appeared from the back in response to the summons. She started nervously as her eye encountered the police uniform, but she waited to be spoken to.

"Is your name Hill?" asked the inspector sternly. "Mrs. Emily Hill?"

The woman nodded feebly, her frightened eyes fixed on the inspector's face.

"Then I want to have a word with you," continued the inspector, walking through the shop into the parlour. "Come in here and answer my questions."

Mrs. Hill followed him timidly into the room he had entered. It was a small, shabbily-furnished apartment, and the inspector's massive proportions made it look smaller still. He took up a commanding position on the strip of drugget which did duty as a hearth-rug, and staring fiercely at her, suddenly commenced:

"Mrs. Hill, where was your husband on the night of the 18th of August, when his employer, Sir Horace Fewbanks, was murdered?"

Mrs. Hill shrank before that fierce gaze, and said, in a low tone:

"Please, sir, he was at home."

"At home, was he? I'm not so sure of that. Tell me all about your husband's movements on that day and night. What time did he come home, to begin with?"