The Dullahan is a figure from Irish folklore, often depicted as a headless rider on a black horse. This supernatural being is said to carry its own head under one arm, which is sometimes described as glowing or having a terrifying expression. The Dullahan is associated with death and is believed to appear as a harbinger of doom, signaling the imminent death of a person. In legends, the Dullahan is known to ride at night, using a whip made from a human spine. It is said that when the Dullahan stops riding, a person will die. Unlike other mythical creatures, the Dullahan does not require a grave to claim a soul, making it a unique figure in Irish mythology.