The explosion startled the whole country for miles around.

The old castle was at all times the centre of the landscape, standing sombre in its ruin amid all the smiling existence of to-day. It flashed in a moment into an importance more wonderful, blazing up to the sky in fire and flame and clouds of smoke like a great battle. The whole neighbourhood, as far as sight could carry, saw this new wonder, and sprang into sudden excitement, alarm, and terror. Every soul rushed out of the village on the bank; servants appeared half frantic in front of Auchnasheen, pushing out in skiffs and fishing-cobbles upon the water which seemed to share the sudden passion of alarm, and became but one great reflection, red and terrible, of the flames which seemed to burst in a moment from every point. Some yachtsmen, whose little vessel had been lying at anchor, and who had been watching with great curiosity the moving figures on the height of the gallery round the tower, with much laughing discussion among themselves as to the possibility of having seen the ghost—were suddenly brought to seriousness in a moment as the yacht bounded under their feet with the concussion of the air, and the idle sail flapping from the mast grew blood-red in the sudden glare. It was the work of another moment to leap into their boat and speed as fast as the oars could plough through the water, to the rescue, if rescue were needed. Who could be there? they asked each other. Only old Macalister with his wife, who, safe in the lower story, would have full time to escape. But then, what were those figures on the tower? The young men almost laughed again as they said to each other, "The warlock lord!" "Let's hope he's blown himself up and made an end of all that nonsense," said the sceptic of the party. But just then the stalwart boat-load came across a wild skiff dashing through the water, old Symington like a ghost in the stern, and red-haired Duncan, with bare arms and throat, rowing as for life and death.

"My lord is there!" cried the old man with quivering lips, "The leddies are there!"

"And Hamish and Miss Oona!" fell stammering from Duncan, half dumb with horror.

The young yachtsmen never said a word, but looked at each other and flew along over the blood-red water. Oona! It was natural they should think of her first in her sweetness and youth.

The two mothers in their tranquil talk sat still for a moment and looked at each other with pale awe on their faces, when that wild tumult enveloped them, paralysing every other sense. They thought they were lost, and instinctively put out their hands to each other. They were alone—even the old servant had left them—and there they sat breathless, expecting death. For a moment the floor and walls so quivered about them that this alone seemed possible; but nothing followed, and their faculties returned. They rose with one impulse and made their way together to the door—then, the awe of death passing, life rising in them, flew down the stair-case with the lightness of youth, and out to the air, which already was full of the red flashes of the rising flames. But once there, a worse thing befell these two poor women. They had been still in the face of death, but now, with life saved, came a sense of something more terrible than death. They cried out in one voice the names of their children. "My boy!" "Oona!" Old Macalister, speechless, dragging his old wife after him, came out and joined them, the two old people looking like owls suddenly scared by the outburst of lurid light.

"Oh, what will be happening?" said the old woman, her dazed astonishment contrasting strangely with the excitement and terror of the others.

Mrs. Forrester answered her with wild and feverish volubility.

"Nothing will have happened," she said. "Oona, my darling! What would happen? She knows her way: she would not go a step too far. Oh, Oona, where are you? why will you not answer me? They will just be bewildered like ourselves, and she will be in a sore fright; but that will be for me. Oona! Oona! She will be frightened—but only for me. Oona! Oh Hamish, man, can ye not find your young lady? The fire—I am not afraid of the fire. She will just be wild with terror—for me. Oona! Oona! Oona!" cried the poor lady, her voice ending in a shriek.

Mrs. Methven stood by her side, but did not speak. Her pale face was raised to the flaming tower, which threw an illumination of red light over everything. She did not know that it was supposed to be inaccessible. For anything she knew, her boy might be there perishing within her sight; and she could do nothing. The anguish of the helpless and hopeless gave her a sort of terrible calm. She looked at the flames as she might have looked at executioners who were putting her son to death. She had no hope.

Into the midst of this distracted group came a sudden rush of men from the boats, which were arriving every minute, the young yachtsmen at their head. Mrs. Forrester flung herself upon these young men, catching hold of them as they came up.

"My Oona's among the ruins," she said breathlessly. "Oh, no fear but you'll find her. Oh, find her! find her! for I'm going out of my senses, I think. I know that she's safe, oh, quite safe! but I'm silly, silly, and my nerves are all wrong. Oh, Harry, for the love of God, and Patrick, Patrick, my fine lad! And not a brother to look after my bairn!"

"We are all her brothers," cried the youths, struggling past the poor lady, who clung to them and hindered their progress, her voice coming shrill through the roar of the flames and the bustle and commotion below. Amid this tumult her piercing "Oona! Oona!" came in from time to time, sharp with the derision of tragedy for anything so ineffectual and vain. Before many minutes had passed the open space in front of the house which stood intact and as yet unthreatened, was crowded with men, none of them, however, knowing what to do, nor, indeed, what had happened. The information that Lord Erradeen and Oona were missing was handed about among them, repeated with shakings of the head to every new-comer. Mrs. Methven standing in the midst, whom nobody knew, received all the comments like so many stabs into her heart. "Was it them that were seen on the walls just before? Then nothing could have saved them." "The wall's all breached to the loch: no cannon could have done it cleaner. It's there you'll find them." "Find them! Oh, hon, oh, hon! the bodies of them. Let's hope their souls are in a better place." The unfortunate mother heard what everybody said. She stood among strangers, with nobody who had any compassion upon her, receiving over and over again the assurance of his fate.

The first difficulty here, as in every other case of the kind, was that no one knew what to do; there were hurried consultations, advices called out on every hand, suggestions—many of them impossible—but no authoritative guide to say what was to be done. Mrs. Methven, turning her miserable looks from one to another, saw standing by her side a man of commanding appearance, who seemed to take no share in either advice or action, but stood calmly looking on. He was so different from the rest, that she appealed to him instinctively.

"Oh, sir!" she cried, "you must know what is best to be done—tell them."

He started a little when she spoke; his face, when he turned it towards her, was full of strange expression. There was sadness in it, and mortification, and wounded pride. She said after that he was like a man disappointed, defeated, full of dejection and indignation. He gave her a look of keen wonder, and then said with a sort of smile—

"Ah, that is true!" Then in a moment his voice was heard over the crowd. "The thing to be done," he said, in a voice which was not loud, but which immediately silenced all the discussions and agitations round, "is to clear away the ruins. The fire will not burn downward—it has no food that way—it will exhaust itself. The young lady fell with the wall. If she is to be found, she will be found there."

The men around all crowded about the spot from which the voice came.

"Wha's that that's speaking?"

"I see nobody."

"What were you saying, sir?"

"Whoever it is, it is the right thing," cried young Patrick from the yacht. "Harry, keep you the hose going on the house. I'll take the other work; and thank you for the advice, whoever you are."

Mrs. Forrester too had heard this voice, and the command and calm in it gave to her troubled soul a new hope. She pushed her way through the crowd to the spot from whence it came.

"Oh," she cried, "did you see my Oona fall? Did you see my Oona? No, no, it would not be her that fell. You are just deceived. Where is my Oona? Oh, sir, tell them where she is that they may find her, and we'll pray for you on our bended knees, night and morning, every day!"

She threw herself on her knees, as she spoke, on the grass, putting up her quivering, feverish hands. The other mother, with a horror which she felt even in the midst of her misery, saw the man to whom this heartrending prayer was addressed, without casting even a glance at the suppliant at his feet, or with any appearance of interest in the proceedings he had advised, turn quietly on his heel and walk away. He walked slowly across the open space and disappeared upon the edge of the water with one glance upward to the blazing tower, taking no more notice of the anxious crowd collected there than if they had not existed. Nor did any one notice the strange spectator going away at the height of the catastrophe, when everybody far and near was roused to help. The men running hurriedly to work did not seem to observe him. The two old servants of the house, Symington and Macalister, stood crowding together out of the reach of the stream of water which was being directed upon the house. But Mrs. Methven took no note of them: only it gave her a strange surprise in the midst of her anguish to see that while her Walter's fate still hung in the balance, there was one who could calmly go away.

By this time the sun had set; the evening, so strangely different from any other that ever had fallen on the loch, was beginning to darken on the hills, bringing out with wilder brilliancy the flaming of the great fire, which turned the tower of Kinloch Houran into a lantern, and blazed upwards in a great pennon of crimson and orange against the blue of the skies. For miles down the loch the whole population was out upon the roads gazing at this wonderful sight; the hillsides were crimsoned by the reflection, as if the heather had bloomed again; the water glowed red under the cool calm of the evening sky. Round about Birkenbraes was a little crowd, the visitors and servants occupying every spot from which this wonder could be seen, and Mr. Williamson himself, with his daughter, standing at the gate to glean what information might be attainable from the passers-by. Katie, full of agitation, unable to bear the common babble inside, had walked on, scarcely knowing what she did, in her indoor dress, shivering with cold and excitement. They had all said to each other that there could be no danger to life in that uninhabited place.

"Toots, no danger at all!" Mr. Williamson had said, with great satisfaction in the spectacle. "Old Macalister and his wife are just like rats in their hole, the fire will never come near them; and the ruin will be none the worse—it will just be more a ruin than ever."

There was something in Katie's mind which revolted against this easy treatment of so extraordinary a catastrophe. It seemed to her connected, she could not tell how, with the scene which had passed in her own room so short a time before. But for shame she would have walked on to Auchnasheen to make sure that Walter was in no danger. But what would he think of her—what would everybody think? Katie went on, however, abstracted from herself, her eyes upon the blaze in the distance, her heart full of disturbed thoughts. All at once she heard the firm quick step of some one advancing to meet her. She looked up eagerly; it might be Walter himself—it might be——When she saw who it was, she came to a sudden pause. Her limbs refused to carry her, her very breath seemed to stop. She looked up at him and trembled. The question that formed on her lips could not get utterance. He was perfectly calm and courteous, with a smile that bewildered her and filled her with terror.

"Is there any one in danger?" he said, answering as if she had spoken. "I think not. There is no one in danger now. It is a fine spectacle. We are at liberty to enjoy it without any drawback—now."

"Oh, sir," said Katie, her very lips quivering, "you speak strangely. Are you sure that there was no one there?"

"I am sure of nothing," he said with a strange smile.

And then Mr. Williamson, delighted to see a stranger, drew near.

"You need not be so keen with your explanations, Katie. Of course it is the gentleman we met at Kinloch Houran. Alas! poor Kinloch Houran, we will never meet there again. You will just stay to dinner now that we have got you. Come, Katie, where are your manners? you say nothing. Indeed we will consider it a great honour—just ourselves and a few people that are staying in the house; and as for dress, what does that matter? It is a thing that happens every day. Neighbours in the country will look in without preparation; and for my part, I say always, the more the merrier," said the open-hearted millionnaire.

The stranger's face lighted up with a gleam of scornful amusement.

"The kindness is great," he said, "but I am on my way to the other end of the loch."

"You are never walking?" cried Mr. Williamson. "Lord bless us? that was a thing that used to be done in my young days, but nobody thinks of now. Your servant will have gone with your baggage? and you would have a delicacy—I can easily understand—in asking for a carriage in the excitement of the moment; but ye shall not walk past my house where there are conveyances of all kinds that it is just a charity to use. Now, I'll take no denial; there's the boat. In ten minutes they'll get up steam. I had ordered it, ready to send up to Auchnasheen for news. But as a friend would never be leaving if the family was in trouble, it is little use to do that now. I will just make a sign to the boat, and they'll have ye down in no time; it will be the greatest pleasure—if you are sure you will not stay to your dinner in the mean time, which is what I would like best?"

He stood looking down upon them both from his great height; his look had been sad and grave when he had met Katie, a look full of expression which she could not fathom. There came now a gleam of amusement over his countenance. He laughed out.

"That would be admirable," he said, offering no thanks, "I will take your boat," like a prince according, rather than receiving, a favour.

Mr. Williamson looked at his daughter with a confused air of astonishment and perplexity, but he sent a messenger off in a boat to warn the steamer, which lay with its lights glimmering white in the midst of the red reflections on the loch. The father and daughter stood there silenced, and with a strange sensation of alarm, beside this stranger. They exchanged another frightened look.

"You'll be going—a long journey?" Mr. Williamson said, faltering, scarcely knowing what he said.

"I am going—for a long time, at least," the stranger said.

He seemed to put aside their curiosity as something trifling, unworthy to be answered, and with a wave of his hand to them, took the path towards the beach.

They turned and looked after him, drawing close to each other for mutual comfort. It was twilight, when everything is confusing and uncertain. They lost sight of him, then saw him again, like a tall pillar on the edge of the water. There was a confusion of boats coming and going, in which they could not trace whither he went, or how. Katie and her father stood watching, taking no account of the progress of time, or of the cold wind of the night which came in gusts from the hills. They both drew a long sigh of relief when the steamer was put in motion, and went off down the loch with its lights like glow-worms on the yards and the masts. Nor did they say a word to each other as they turned and went home. When inquiries were made afterwards, nothing but the most confused account could be had of the embarkation. The boatman had seen the stranger, but none among them would say that he had conveyed him to the steamer; and on the steamer the men were equally confused, answering at random, with strange glances at each other. Had they carried that passenger down to the foot of the loch? Not even Katie's keen questioning could elicit a clear reply.

But when the boat had steamed away, carrying into the silence the rustle of its machinery and the twinkling of its lights, there was another great explosion from the tower of Kinloch Houran, a loud report which seemed to roar away into the hollow of the mountains, and came back in a thousand rolling echoes. A great column of flame shot up into the sky, the stones fell like a cannonade, and then all was darkness and silence. The loch fell into sudden gloom; the men who were labouring at the ruins stopped short, and groped about to find each other through the dust and smoke which hung over them like a cloud. The bravest stood still, as if paralysed, and for a moment, through all this strange scene of desolation and terror, there was but one sound audible, the sound of a voice which cried "Oona! Oona!" now shrill, now hoarse with exhaustion and misery, "Oona! Oona!" to earth and heaven.