On that first story the doors stood ajar, three of them like three ambushes, shaking his nerves like the throats of cannon. He could never again, he felt, be sufficiently immured and fortified from men's observing eyes; he longed to be home, girt in by walls, buried among bed-clothes, and invisible to all but God. And at that thought he wondered a little, recollecting tales of other murderers and the fear they were said to entertain of heavenly avengers. It was not so, at least, with him. He feared the laws of nature, lest, in their callous and immutable procedure, they should preserve some damning evidence of his crime. He feared tenfold more, with a slavish, superstitious terror, some scission[14] in the continuity of man's experience, some wilful illegality of nature. He played a game of skill, depending on the rules, calculating consequence from cause; and what if nature, as the defeated tyrant overthrew the chessboard, should break the mould of their succession? The like had befallen Napoleon (so writers said) when the winter changed the time of its appearance. The like might befall Markheim: the solid walls might become transparent and reveal his doings like those of bees in a glass hive; the stout planks might yield under his foot like quicksands and detain him in their clutch; aye, and there were soberer accidents that might destroy him: if, for instance, the house should fall and imprison him beside the body of his victim; or the house next door should fly on fire, and the firemen invade him from all sides. These things he feared; and, in a sense, these things might be called the hands of God reached forth against sin. But about God himself he was at ease; his act was doubtless exceptional, but so were his excuses, which God knew; it was there, and not among men, that he felt sure of justice.