'Arthur what have you done?'

'I've killed him,' he said hoarsely.

'O God, what shall we do?'

Arthur began to laugh aloud, hysterically, and in the darkness his hilarity was terrifying.

'For God's sake let us have some light.'

'I've found the matches,' said Dr Porhoлt.

He seemed to awake suddenly from his long stupor. He struck one, and it would not light. He struck another, and Susie took off the globe and the chimney as he kindled the wick. Then he held up the lamp, and they saw Arthur looking at them. His face was ghastly. The sweat ran off his forehead in great beads, and his eyes were bloodshot. He trembled in every limb. Then Dr Porhoлt advanced with the lamp and held it forward. They looked down on the floor for the man who lay there dead. Susie gave a sudden cry of horror.

There was no one there.

Arthur stepped back in terrified surprise. There was no one in the room, living or dead, but the three friends. The ground sank under Susie's feet, she felt horribly ill, and she fainted. When she awoke, seeming difficultly to emerge from an eternal night, Arthur was holding down her head.

'Bend down,' he said. 'Bend down.'

All that had happened came back to her, and she burst into tears. Her self-control deserted her, and, clinging to him for protection, she sobbed as though her heart would break. She was shaking from head to foot. The strangeness of this last horror had overcome her, and she could have shrieked with fright.

'It's all right,' he said. 'You need not be afraid.'

'Oh, what does it mean?'

'You must pluck up courage. We're going now to Skene.'

She sprang to her feet, as though to get away from him; her heart beat wildly.

'No, I can't; I'm frightened.'

'We must see what it means. We have no time to lose, or the morning will be upon us before we get back.'

Then she sought to prevent him.

'Oh, for God's sake, don't go, Arthur. Something awful may await you there. Don't risk your life.'

'There is no danger. I tell you the man is dead.'

'If anything happened to you ...'

She stopped, trying to restrain her sobs; she dared not go on. But he seemed to know what was in her mind.

'I will take no risks, because of you. I know that whether I live or die is not a--matter of indifference to you.'

She looked up and saw that his eyes were fixed upon her gravely. She reddened. A curious feeling came into her heart.

'I will go with you wherever you choose,' she said humbly.

'Come, then.'

They stepped out into the night. And now, without rain, the storm had passed away, and the stars were shining. They walked quickly. Arthur went in front of them. Dr Porhoлt and Susie followed him, side by side, and they had to hasten their steps in order not to be left behind. It seemed to them that the horror of the night was passed, and there was a fragrancy in the air which was wonderfully refreshing. The sky was beautiful. And at last they came to Skene. Arthur led them again to the opening in the palisade, and he took Susie's hand. Presently they stood in the place from which a few days before they had seen the house. As then, it stood in massive blackness against the night and, as then, the attic windows shone out with brilliant lights. Susie started, for she had expected that the whole place would be in darkness.

'There is no danger, I promise you,' said Arthur gently. 'We are going to find out the meaning of all this mystery.'

He began to walk towards the house.

'Have you a weapon of some sort?' asked the doctor.

Arthur handed him a revolver.

'Take this. It will reassure you, but you will have no need of it. I bought it the other day when--I had other plans.'

Susie gave a little shudder. They reached the drive and walked to the great portico which adorned the facade of the house. Arthur tried the handle, but it would not open.

'Will you wait here?' he said. 'I can get through one of the windows, and I will let you in.'

He left them. They stood quietly there, with anxious hearts; they could not guess what they would see. They were afraid that something would happen to Arthur, and Susie regretted that she had not insisted on going with him. Suddenly she remembered that awful moment when the light of the lamp had been thrown where all expected to see a body, and there was nothing.

'What do you think it meant?' she cried suddenly. 'What is the explanation?'

'Perhaps we shall see now,' answered the doctor.

Arthur still lingered, and she could not imagine what had become of him. All sorts of horrible fancies passed through her mind, and she dreaded she knew not what. At last they heard a footstep inside the house, and the door was opened.

'I was convinced that nobody slept here, but I was obliged to make sure. I had some difficulty in getting in.'

Susie hesitated to enter. She did not know what horrors awaited her, and the darkness was terrifying.

'I cannot see,' she said.

'I've brought a torch,' said Arthur.

He pressed a button, and a narrow ray of bright light was cast upon the floor. Dr Porhoлt and Susie went in. Arthur carefully closed the door, and flashed the light of his torch all round them. They stood in a large hall, the floor of which was scattered with the skins of lions that Haddo on his celebrated expedition had killed in Africa. There were perhaps a dozen, and their number gave a wild, barbaric note. A great oak staircase led to the upper floors.

'We must go through all the rooms,' said Arthur.

He did not expect to find Haddo till they came to the lighted attics, but it seemed needful nevertheless to pass right through the house on their way. A flash of his torch had shown him that the walls of the hall were decorated with all manner of armour, ancient swords of Eastern handiwork, barbaric weapons from central Africa, savage implements of medieval warfare; and an idea came to him. He took down a huge battle-axe and swung it in his hand.

'Now come.'

Silently, holding their breath as though they feared to wake the dead, they went into the first room. They saw it difficultly with their scant light, since the thin shaft of brilliancy, emphasising acutely the surrounding darkness, revealed it only piece by piece. It was a large room, evidently unused, for the furniture was covered with holland, and there was a mustiness about it which suggested that the windows were seldom opened. As in many old houses, the rooms led not from a passage but into one another, and they walked through many till they came back into the hall. They had all a desolate, uninhabited air. Their sombreness was increased by the oak with which they were panelled. There was panelling in the hall too, and on the stairs that led broadly to the top of the house. As they ascended, Arthur stopped for one moment and passed his hand over the polished wood.

'It would burn like tinder,' he said.

They went through the rooms on the first floor, and they were as empty and as cheerless. Presently they came to that which had been Margaret's. In a bowl were dead flowers. Her brushes were still on the toilet table. But it was a gloomy chamber, with its dark oak, and, so comfortless that Susie shuddered. Arthur stood for a time and looked at it, but he said nothing. They found themselves again on the stairs and they went to the second storey. But here they seemed to be at the top of the house.

'How does one get up to the attics?' said Arthur, looking about him with surprise.

He paused for a while to think. Then he nodded his head.

'There must be some steps leading out of one of the rooms.'

They went on. And now the ceilings were much lower, with heavy beams, and there was no furniture at all. The emptiness seemed to make everything more terrifying. They felt that they were on the threshold of a great mystery, and Susie's heart began to beat fast. Arthur conducted his examination with the greatest method; he walked round each room carefully, looking for a door that might lead to a staircase; but there was no sign of one.