one tale the bwca had a human friend who was sent off to war and killed. The bwca became distraught and played disruptive pranks until a cunning-man (magician) was brought in to banish him from the house. Ceffyl Dŵr, a water horse similar to the Kelpie Cewri (Giants), such as Ysbaddaden Bencawr from Culhwch and Olwen, and Brân from the Four Branches of the Mabinogi. Coblynau, little people and mine spirits like the Knocker Coraniaid, a mysterious race of beings who plagued the Island of Britain Cŵn Annwn, hunting dogs of the Otherworld Cyhyraeth, death spirit Y Diawl (The Devil) who was said to have built various bridges in Wales (including Devil's Bridge, Ceredigion), and to appear to sinners in the form of a horned, black-faced shepherd leading a pack of dogs. Sometimes associated with the bobtailed black sow known as Yr Hwch Ddu Gwta. Dreigiau (Dragons), the most famous being Y Ddraig Goch. Y Dyn Hysbys (The Wise Man), or wizard. These could be clerics, men who learned about medicine and black magic from books, and those who claimed to inherit power from their families and thus could foresee the future, particularly on an Ysbrydnos, and give charms to ward off evil. Gwiddonod (Witches), old women who could cast spells over people and animals, ride broomsticks through the air, tell fortunes, and use charms to heal and cause diseases. They could take the form of a hare, and could only be killed with a silver bullet. Only Y Dyn Hysbys (The Wise Man) could undo the harm they cause. Gwragedd Annwn, beautiful lake maidens. Gwyllgi, a large black dog that haunts lonely roads. Gwyllion, mountain spirits resembling hags. Llamhigyn y Dŵr, winged toad lake creature also known as a water leaper. Morgens, water spirits Plentyn Newid, the Welsh take on the Changeling creature. Pwca, shapeshifting animal spirit Tylwyth Teg, literally "the Fair Folk," the common name in Welsh for the fairy folk, inhabitants of the Otherworld Ysbrydion (spirits), which are more likely to come in contact with humans on an Ysbrydnos or "spirit night" (see Calan Gaeaf, Calan Mai) Folk narrative Includes folk tales, legends, traditions and anecdotes. The cyfarwyddiaid (singular: cyfarwydd, "storyteller"), were members of the bardic order in Wales. The only historical cyfarwydd known by name is Bledri ap Cydifor ('Bledericus Walensis', 'Bleherus'). The cyfawyddiaid were considered a learned class with duties and an education that exceeded