Cŵn Annwn are Welsh supernatural hounds whose howls served as a death omen to those who heard it. Death portents are quite common in Welsh folklore. According to Delyth Badder and Mark Norman, authors of The Folklore of Wales: Ghosts, Cŵn Annwn “represent perhaps one of the oldest omens within Welsh tradition.” The Welsh name for these hounds, Cŵn Annwn,…