Elspeth thought for a few moments.

"I fancy it would be best for you to return to the 'Marsh Inn,' and question Mrs. Narby."

"Do you think that she knows the truth?"

"I can't be sure; but she is an observant woman, and if you promise her a reward she would tell you of anything suspicious she might have seen."

"That's true," then Angus burst into laughter, "I wonder if she'll be civil."

"Of course. She must have seen in the papers that you have inherited this money, and if you make it worth her while----"

"But I can't until I find out who killed my uncle. Only when the true assassin is discovered will I be able to inherit."

"Make it worth Mrs. Narby's while and she will assist you," insisted Elspeth. "I am quite sure that the secret of the crime is to be discovered at the 'Marsh Inn.'"

"Perhaps Mrs. Narby herself killed my uncle."

"Why do you think that?" asked Mrs. Herries, quite startled.