Motive
She took the position of housekeeper because she feared Benson's conduct toward her daughter. She always listened when her daughter came to his house at night to work.
Recently she discovered that Benson had dishonorable intentions, and believed her daughter to be in imminent danger.
A mother who would sacrifice herself for her daughter's future, as she has done, would not hesitate at killing to save her.
And: there are the jewels. She has them hidden and is keeping them for her daughter. Would Benson have gone out and left them on the table? And if he had put them away, who but she, familiar with the house and having plenty of time, could have found them?
Conduct
She lied about St. Clair's coming to tea, explaining later that she knew St. Clair could not have had anything to do with the crime. Was this feminine intuition? No. She could know St. Clair was innocent only because she herself was guilty. She was too motherly to want an innocent person suspected.
She was markedly frightened yesterday when her daughter's name was mentioned, because she feared the discovery of the re-