"You must not say such a thing, much less think it," he sharply interrupted. "Your soul, your mind, should be sovereign. You should look rather to science for guidance"--here he smiled meaningly--"and to me, of course, as a representative of science. If you acknowledge the authority of the dead, or even that of your mother, my power is to that extent curtailed. It is to be in effect a war of light and darkness, science and superstition. We are willing to join issue with your shadow foes, provided your best self is with us in the struggle. I engage myself to free you if you will permit me to act." She leaned towards him with pale face and limpid, heavenly eyes. "You have been good to me, but I cannot ask you to fight my battles. You have so much else to do in the world." "I have nothing better to do," he responded, with a lover's glance. "Nothing can interest me so profoundly; nothing will give me greater pleasure." She went on, fervently: "I can't tell you how you comfort me. When you are near me I have no fear of anything; but you oughtn't to give up your work to treat me. We can never pay you for what you've already done for us." "Don't try, and pray don't exaggerate my sacrifices. You must remember I am an investigator, and you--are a most absorbing problem." She drew away from him slightly, and he returned to a more serious tone. "The influence of mind over mind is the present, or at least the coming, problem, and you have opened a new world to me. The question of your future, your cure, absorbs me, and while I am by no means a rich man, as money runs these days, I am quite able to follow out any line of investigation which may interest me." Her face clouded, "I wish I didn't have to be investigated." "So do I, and that brings up something which I must say, even at the risk of seeming hard and cruel. If you wish to live your full, free life, you must cut yourself off from _all_ of your old associations. Clarke and Pratt have passed out of your life, but your mother--" He paused abruptly. When he resumed his tone was almost pleading: "You have said that you trusted me, that you wished for my help. Did you mean it?" "I did, indeed I did!" "Very well, then," he went on, "I will speak my mind. I must be very candid, even if I seem harsh. When I say you must cut yourself off from all the associations of the past, I mean your mother also." She started up in dismay, understanding his full meaning at last. "Oh no, not that!"