"I think the best thing we can do will be to go round all the places which are mixed up in this affair.""All right, dear, I am ready. But, if you don't mind, we might go first to Mercy. I am anxious about grandfather, and we might see that--as yet, at all events--nothing has happened there."So they went on the high-hung road along the top of the Brow. The wind here was of great force, and made a strange booming noise as it swept high overhead; though not the sound of cracking and tearing as it passed through the woods of high slender trees which grew on either side of the road. Mimi could hardly keep her feet. She was not afraid; but the force to which she was opposed gave her a good excuse to hold on to her husband extra tight.
At Mercy there was no one up--at least, all the lights were out.
But to Mimi, accustomed to the nightly routine of the house, there were manifest signs that all was well, except in the little room on the first floor, where the blinds were down. Mimi could not bear to look at that, to think of it. Adam understood her pain, for he had been keenly interested in poor Lilla. He bent over and kissed her, and then took her hand and held it hard. Thus they passed on together, returning to the high road towards Castra Regis.
At the gate of Castra Regis they were extra careful. When drawing near, Adam stumbled upon the wire that Lady Arabella had left trailing on the ground.
Adam drew his breath at this, and spoke in a low, earnest whisper:
"I don't want to frighten you, Mimi dear, but wherever that wire is there is danger.""Danger! How?"
"That is the track where the lightning will go; at any moment, even now whilst we are speaking and searching, a fearful force may be loosed upon us. Run on, dear; you know the way to where the avenue joins the highroad. If you see any sign of the wire, keep away from it, for God's sake. I shall join you at the gateway.""Are you going to follow that wire alone?"
"Yes, dear. One is sufficient for that work. I shall not lose a moment till I am with you.""Adam, when I came with you into the open, my main wish was that we should be together if anything serious happened. You wouldn't deny me that right, would you, dear?""No, dear, not that or any right. Thank God that my wife has such a wish. Come; we will go together. We are in the hands of God. If He wishes, we shall be together at the end, whenever or wherever that may be."They picked up the trail of the wire on the steps and followed it down the avenue, taking care not to touch it with their feet. It was easy enough to follow, for the wire, if not bright, was self-coloured, and showed clearly. They followed it out of the gateway and into the avenue of Diana's Grove.
Here a new gravity clouded Adam's face, though Mimi saw no cause for fresh concern. This was easily enough explained. Adam knew of the explosive works in progress regarding the well-hole, but the matter had been kept from his wife. As they stood near the house, Adam asked Mimi to return to the road, ostensibly to watch the course of the wire, telling her that there might be a branch wire leading somewhere else. She was to search the undergrowth, and if she found it, was to warn him by the Australian native "Coo-ee!"Whilst they were standing together, there came a blinding flash of lightning, which lit up for several seconds the whole area of earth and sky. It was only the first note of the celestial prelude, for it was followed in quick succession by numerous flashes, whilst the crash and roll of thunder seemed continuous.
Adam, appalled, drew his wife to him and held her close. As far as he could estimate by the interval between lightning and thunder-clap, the heart of the storm was still some distance off, so he felt no present concern for their safety. Still, it was apparent that the course of the storm was moving swiftly in their direction. The lightning flashes came faster and faster and closer together; the thunder-roll was almost continuous, not stopping for a moment--a new crash beginning before the old one had ceased. Adam kept looking up in the direction where the kite strained and struggled at its detaining cord, but, of course, the dull evening light prevented any distinct scrutiny.
At length there came a flash so appallingly bright that in its glare Nature seemed to be standing still. So long did it last, that there was time to distinguish its configuration. It seemed like a mighty tree inverted, pendent from the sky. The whole country around within the angle of vision was lit up till it seemed to glow. Then a broad ribbon of fire seemed to drop on to the tower of Castra Regis just as the thunder crashed. By the glare, Adam could see the tower shake and tremble, and finally fall to pieces like a house of cards. The passing of the lightning left the sky again dark, but a blue flame fell downward from the tower, and, with inconceivable rapidity, running along the ground in the direction of Diana's Grove, reached the dark silent house, which in the instant burst into flame at a hundred different points.
At the same moment there rose from the house a rending, crashing sound of woodwork, broken or thrown about, mixed with a quick scream so appalling that Adam, stout of heart as he undoubtedly was, felt his blood turn into ice. Instinctively, despite the danger and their consciousness of it, husband and wife took hands and listened, trembling. Something was going on close to them, mysterious, terrible, deadly! The shrieks continued, though less sharp in sound, as though muffled. In the midst of them was a terrific explosion, seemingly from deep in the earth.
