The Corner House by Fred M. White

Heavy as were these blows, a few hours' sleep braced Leona Lalage for what she knew to be a trying ordeal. By the time that breakfast was a thing of the past she had sketched out a new plan of campaign. The terrible unseen force from behind had driven her from her strong position. In future she would have to recognise the fact that she was hopelessly beaten, and all that she could expect now was to cover up her tracks and prevent the final solution of the mystery.

On the whole, an appearance of candour would be best. She would go straight to Prout, who had the Corner House tragedy in hand, and tell him everything, at least everything that Lawrence had found out. She never guessed for a moment that this was exactly what the novelist expected her to do, in fact, he had apparently told all he knew to gain this end. Also, at his suggestion, Isidore had blurted out the fact that Prout had succeeded in laying Leon Lalage's brother by the heels.