The deadline was growing near for Screwtape's overlings, and Glubwart was no nearer having something to show his boss. He was still engrossed in Mary's case. His plan seemed outwardly to be going well, but he was troubled by the way she was responding -- or rather, to the way she was not responding to the predicament Glubwart was helping contrive for her. There was something impenetrable about her inner being. Glubwart had never encountered such difficulty getting to the innermost workings of a human psyche. He had won over hundreds -- thousands -- with much less effort. He had no trouble getting into her dreams, but when he tried to go deeper, he was met with a confusing, nebulous cloud. Something was going on with the girl. She seemed to have too much of the enemy's power, and he couldn't figure out why. There was nothing in her history to suggest any reason for it. She had never seen the inside of a church. Her thoughts were easily accessible to Glubwart; but what lay underneath was like a subterranean sea.
Got to find some way to get to her. Cut her off, isolate her. Her last tie seems to be that young fool. Cut him off -- out of the picture