His first thought was for Sybil, and he sent her off a telegram announcing his immediate return to London. He then ordered his valet to pack his things for the night mail, sent his gondoliers about live times their proper fare, and ran up to his sitting-room with a light step and a buoyant heart. There he found three letters waiting for him. One was from Sybil herself, full of sympathy and condolence. The others were from his mother, and from Lady Clementina's solicitor. It seemed that the old lady had dined with the Duchess that very night, had delighted every one by her wit and esprit, but had gone home somewhat early, complaining of heartburn. In the morning she was found dead in her bed, having apparently suffered no pain. Sir Mathew Reid had been sent for at once, but, of course, there was nothing to be done, and she was to be buried on the 22nd at Beauchamp Chalcote. A few days before she died she had made her will, and left Lord Arthur her little house in Curzon Street, and all her furniture, personal effects, and pictures, with the exception of her collection of miniatures, which was to go to her sister, Lady Margaret Rufford and her amethyst necklace, which Sybil Merton was to have. The property was not of much value; but Mr. Mansfield the solicitor was extremely anxious for Lord Arthur to return at once, if possible, as there were a great many bills to be paid, and Lady Clementina had never kept any regular accounts.

Lord Arthur was very much touched by Lady Clementina's kind remembrance of him, and felt that Mr. Podgers had a great deal to answer for. His love of Sybil, however, dominated every other emotion, and the consciousness that he had done his duty gave him peace and comfort. When he arrived at Charing Cross, he felt perfectly happy.

The Mertons received him very kindly, Sybil made him promise that he would never again allow anything to come between them, and the marriage was fixed for the 7th June. Life seemed to him once more bright and beautiful, and all his old gladness came back to him again.

One day, however, as he was going over the house in Curzon Street, in company with Lady Clementina's solicitor and Sybil herself, burning packages of faded letters, and turning out drawers of odd rubbish, the young girl suddenly gave a little cry of delight.

`What have you found, Sybil?' said Lord Arthur, looking up from his work, and smiling.

`This lovely little silver bonbonnière, Arthur. Isn't it quaint and Dutch? Do give it to me! I know amethysts won't become me till I am over eighty.'

It was the box that had held the aconitine.

Lord Arthur started, and a faint blush came into his cheek. He had almost entirely forgotten what he had done, and it seemed to him a curious coincidence that Sybil, for whose sake he had gone through all that terrible anxiety, should have been the first to remind him of it.

`Of course you can have it, Sybil. I gave it to poor Lady Clem myself.'

`Oh! thank you, Arthur; and may I have the bonbon too? I had no notion that Lady Clementina liked sweets. I thought she was far too intellectual.'

Lard Arthur grew deadly pale, and a horrible idea crossed his mind.

`Bonbon, Sybil? What do you mean?' he said in a slow, hoarse voice.

`There is one in it, that is all. It looks quite old and dusty, and I have not the slightest intention of eating it. What is the matter, Arthur? How white you look!'

Lord Arthur rushed across the room, and seized the box. Inside it was the amber-coloured capsule, with its poison-bubble. Lady Clementina had died a natural death after all!

The shock of the discovery was almost too much for him. He flung the capsule into the lire, and sank on the sofa with a cry of despair.