Rebecca Adams was 'a woman who appeared to be a true living experimental Christian, beyond many,' and she lived near Laugharne Castle, in Carmarthenshire. One evening when she was going to Laugharne town on some business, her mother dissuaded her from going, telling her she would be benighted, and might be terrified by some apparition at Pant y Madog. This was a pit by the side of the lane leading to Laugharne, which was never known to be dry, and which was haunted, as many had both seen and heard apparitions there. But the bold Rebecca was not to be frighted at such nonsense, and went her way. It was rather dark when she was returning, and she had passed by the haunted pit of Pant y Madog, and was congratulating herself on having seen no ghost. Suddenly she saw a great dog coming towards her. When within about four or five yards of her it stopped, squatted on its haunches, 'and set up such a scream, so loud, so horrible, and so strong, that she thought the earth moved under her.' Then she fell down in a swoon. When she revived it was gone; and it was past midnight when she got home, weak and exhausted.