But Aileen, meditating over Antoinette Nowak, was beside herself with curiosity, doubt, worry. She did not want to injure Cowperwood in any way after his bitter Philadelphia experience, and yet when she thought of his deserting her in this way she fell into a great rage. Her vanity, as much as her love, was hurt. What could she do to justify or set at rest her suspicions? Watch him personally? She was too dignified and vain to lurk about street-corners or offices or hotels. Never! Start a quarrel without additional evidence—that would be silly. He was too shrewd to give her further evidence once she spoke. He would merely deny it. She brooded irritably, recalling after a time, and with an aching heart, that her father had put detectives on her track once ten years before, and had actually discovered her relations with Cowperwood and their rendezvous. Bitter as that memory was—torturing—yet now the same means seemed not too abhorrent to employ under the circumstances. No harm had come to Cowperwood in the former instance, she reasoned to herself—no especial harm—from that discovery (this was not true), and none would come to him now. (This also was not true.) But one must forgive a fiery, passionate soul, wounded to the quick, some errors of judgment. Her thought was that she would first be sure just what it was her beloved was doing, and then decide what course to take. But she knew that she was treading on dangerous ground, and mentally she recoiled from the consequences which might follow. He might leave her if she fought him too bitterly. He might treat her as he had treated his first wife, Lillian. She studied her liege lord curiously these days, wondering if it were true that he had deserted her already, as he had deserted his first wife thirteen years before, wondering if he could really take up with a girl as common as Antoinette Nowak—wondering, wondering, wondering—half afraid and yet courageous. What could be done with him? If only he still loved her all would be well yet—but oh! The detective agency to which she finally applied, after weeks of soul-racking suspense, was one of those disturbingly human implements which many are not opposed to using on occasion, when it is the only means of solving a troublous problem of wounded feelings or jeopardized interests. Aileen, being obviously rich, was forthwith shamefully overcharged; but the services agreed upon were well performed. To her amazement, chagrin, and distress, after a few weeks of observation Cowperwood was reported to have affairs not only with Antoinette Nowak, whom she did suspect, but also with Mrs. Sohlberg. And these two affairs at one and the same time. For the moment it left Aileen actually stunned and breathless.