'I agreed to it as a temporary measure,' said Mrs. Calverley; 'but it seemed to work well, and has continued ever since.' 'You had never seen Madame Du Tertre before? never heard Mr. Calverley mention her name?' 'Certainly not; neither the one nor the other. What on earth makes you ask these questions, Martin?' But Martin had fallen back again into his chair. His eyes were once more riveted on the fire, and his ears were deaf to his mother's voice. What a curious woman his mother was! How weak, even in the grim obstinacy on which she prided herself! how liable to be deceived, in spite of all the suspicion which she exhibited! This Madame Du Tertre, then, had been introduced into the house by Mr. Calverley, and his mother had accepted her as her companion on the very slight evidence of the story which Mr. Calverley had told her, and which might have been concocted between him and the Frenchwoman a few minutes before her arrival. What had been Madame Du Tertre's object in seeking for an introduction into this house? What could be her motive for allying herself with such a woman as Mrs. Calverley? Whatever motive it might have been, it was still in existence, for had she not made it a condition of assisting him with Alice that he would not interfere with her plans as regarded his mother? What could those plans be? Madame Du Tertre was not a mere wretched creature sponging upon any one who would befriend her, and earning with fulsome adulation her nightly shelter and her daily bread. She had money of her own, as he understood; not much, indeed, but sufficient to provide her with the necessaries of life; and she was the last woman in the world to give up her freedom, and to go in for mere vulgar mercenary scheming for a material home with such a person as Mrs. Calverley, to endure the position of companion in the grim house in Great Walpole-street. She must have something large at stake, must be actuated by some ulterior motive of vast importance. What can that motive be? Who is she? Where did she come from? When and how commenced her acquaintance with Mr. Calverley? 'What on earth makes you ask these questions, Martin?' The harsh grating voice recalled him to himself, but even then he was at first a little dazed. 'These questions? What questions? O, I recollect; about Madame Du Tertre. Merely curiosity, mother; I could not possibly have any other motive.' 'Well, now that I have satisfied your curiosity, and told you all I know--which was little enough, for Mr. Calverley was reticent towards me in that as in all other matters of his life--now that I have done my best to give you this information, perhaps you will be good enough to return to the subject which I started, and tell me what you think about my proposition.'