I can only say that reading this was like walking the edge of a cliff, and feeling the vertigo of the earth falling away from you. Less than what was happening around them, the tension and uncertainty between Harry and Severus kept me on edge until the last few lines, and then it was as though I'd come out of the desert into shade and water. A marvelous job of the fulfilling your prompts, and a great look at the dichotomy of Severus complicating, and Harry simplifying every point.