Lady Arabella, crouching in the lobby behind the door, heard every word that had been said, and formed her own opinion of it. It seemed evident to her that there had been some rapprochement between the two who had so lately been hostile to each other, and that made her furiously angry. Mimi was interfering with her plans! She had made certain of her capture of Edgar Caswall, and she could not tolerate even the lightest and most contemptuous fancy on his part which might divert him from the main issue. When she became aware that he wished Mimi to come with him to the roof and that she had acquiesced, her rage got beyond bounds. She became oblivious to any danger there might be in a visit to such an exposed place at such a time, and to all lesser considerations, and made up her mind to forestall them. She stealthily and noiselessly crept through the wicket, and, ascending the stair, stepped out on the roof. It was bitterly cold, for the fierce gusts of the storm which swept round the turret drove in through every unimpeded way, whistling at the sharp corners and singing round the trembling flagstaff. The kite-string and the wire which controlled the runners made a concourse of weird sounds which somehow, perhaps from the violence which surrounded them, acting on their length, resolved themselves into some kind of harmony--a fitting accompaniment to the tragedy which seemed about to begin.

Mimi's heart beat heavily. Just before leaving the turret-chamber she had a shock which she could not shake off. The lights of the room had momentarily revealed to her, as they passed out, Edgar's face, concentrated as it was whenever he intended to use his mesmeric power. Now the black eyebrows made a thick line across his face, under which his eyes shone and glittered ominously. Mimi recognised the danger, and assumed the defiant attitude that had twice already served her so well. She had a fear that the circumstances and the place were against her, and she wanted to be forearmed.

The sky was now somewhat lighter than it had been. Either there was lightning afar off, whose reflections were carried by the rolling clouds, or else the gathered force, though not yet breaking into lightning, had an incipient power of light. It seemed to affect both the man and the woman. Edgar seemed altogether under its influence. His spirits were boisterous, his mind exalted. He was now at his worst; madder than he had been earlier in the night.

Mimi, trying to keep as far from him as possible, moved across the stone floor of the turret roof, and found a niche which concealed her. It was not far from Lady Arabella's place of hiding.

Edgar, left thus alone on the centre of the turret roof, found himself altogether his own master in a way which tended to increase his madness. He knew that Mimi was close at hand, though he had lost sight of her. He spoke loudly, and the sound of his own voice, though it was carried from him on the sweeping wind as fast as the words were spoken, seemed to exalt him still more. Even the raging of the elements round him appeared to add to his exaltation. To him it seemed that these manifestations were obedient to his own will.

He had reached the sublime of his madness; he was now in his own mind actually the Almighty, and whatever might happen would be the direct carrying out of his own commands. As he could not see Mimi, nor fix whereabout she was, he shouted loudly: