In a nature such as that of Fenton there is, with the exception of vanity and the instinct of self-preservation, no trait stronger than curiosity. The artist was devoured by an eager, intellectual greed to know all things, to experience all sensations, to taste all savors of life. He made no distinction between good and bad; his zeal for knowledge was too keen to allow of his being deterred by the line ordinarily drawn between pain and pleasure. His affections, his passions, his morals were all subordinate to this burning curiosity, and only his instinct of self-preservation subtly making itself felt in the guise of expediency, and his vanity prettily disguised as taste, held the thirst for knowledge in check. It was by far more the desire to learn whether he could bend Ninitta to his will than it was passion which carried Fenton forward in the dangerous path upon which he was now well advanced; and it was perhaps more than either a half-unconscious eagerness to taste a new experience. Even the double wickedness of betraying the wife of a friend and of enticing a woman to her fall had for Fenton, in his present mood, an unholy fascination. He was too self-analytical to deceive himself into a supposition that he was in love with Ninitta, and even his passion was so much under the dominion of his head that he could have blown it out like a rushlight, had he really desired to be done with it. He looked at himself with mingled approbation, amusement, and horror, as he might have regarded a favorite and skilful actor in a vicious _role_; and the man whose mind is to him merely an amphitheatre, where games are played for his amusement, is always dangerous. As for Ninitta, the processes of her mind were probably quite as complex as those of his, although they appeared more simple, in virtue of their being more remote. She had, in the first place, a curious jealousy of her husband because of his passionate fondness for Nino, and a dull resentment at the secret conviction that the father had the gifts and powers which were sure to win more love than the child would bestow upon her. She could better bear the thought that the boy should die, than that he should live to love anybody more than he loved her.