He was frowning perplexedly, and I drew a deep breath of relief, for the terrible thought that had flashed across my mind was this: that Dr. 
I realized that he was the one who was responsible.
mnli hypothesis: I realized that he was the one who was responsible. premise: He was frowning perplexedly, and I drew a deep breath of relief, for the terrible thought that had flashed across my mind was this: that Dr. 