Two or three times during the first evening after the heap was lit, he went to the back door to take a survey. Before bolting and barring up for the night, he made a final and more careful examination. The slowly-smoking pile showed not the slightest signs of activity. Springrove’s perfectly sound conclusion was, that as long as the heap was not stirred, and the wind continued in the quarter it blew from then, the couch would not flame, and that there could be no shadow of danger to anything, even a combustible substance, though it were no more than a yard off. The next morning the burning couch was discovered in precisely the same state as when he had gone to bed the preceding night. The heap smoked in the same manner the whole of that day: at bed-time the farmer looked towards it, but less carefully than on the first night. The morning and the whole of the third day still saw the heap in its old smouldering condition; indeed, the smoke was less, and there seemed a probability that it might have to be re-kindled on the morrow. After admitting Mrs. Manston to his house in the evening, and hearing her retire, Mr. Springrove returned to the front door to listen for a sound of his son, and inquired concerning him of the railway-porter, who sat for a while in the kitchen. The porter had not noticed young Mr. Springrove get out of the train, at which intelligence the old man concluded that he would probably not see his son till the next day, as Edward had hitherto made a point of coming by the train which had brought Mrs. Manston. Half-an-hour later the porter left the inn, Springrove at the same time going to the door to listen again an instant, then he walked round and in at the back of the house. The farmer glanced at the heap casually and indifferently in passing; two nights of safety seemed to ensure the third; and he was about to bolt and bar as usual, when the idea struck him that there was just a possibility of his son’s return by the latest train, unlikely as it was that he would be so delayed. The old man thereupon left the door unfastened, looked to his usual matters indoors, and went to bed, it being then half-past ten o’clock. Farmers and horticulturists well know that it is in the nature of a heap of couch-grass, when kindled in calm weather, to smoulder for many days, and even weeks, until the whole mass is reduced to a powdery charcoal ash, displaying the while scarcely a sign of combustion beyond the volcano-like smoke from its summit; but the continuance of this quiet process is throughout its length at the mercy of one particular whim of Nature: that is, a sudden breeze, by which the heap is liable to be fanned into a flame so brisk as to consume the whole in an hour or two. Had the farmer narrowly watched the pile when he went to close the door, he would have seen, besides the familiar twine of smoke from its summit, a quivering of the air around the mass, showing that a considerable heat had arisen inside.