Gwyn, the bright god of the Brythonic underworld Annwfn and Faery king of the wild Welsh spirits, the twlwyth teg, is an ancient and mysterious figure. His tales are scattered through oral folklore and across medieval Welsh literature, a depository of our ancient god-tales. Said to dwell within the legendary glass castle in Glastonbury Tor, as well as the black mountains of Wales, he is both a figure of romance and fear. A dark lover through the winter months, leader of the wild hunt, and guardian of the dead. He is the ancient companion of bards and visionaries through the initiatory journey to the depths of the Celtic Underworld, in search of the Goddess of the land herself. With a close look at traditional magic and lore as well as practical exercises, Gwyn ap Nudd is an essential guide for all those who seek wisdom from the darkness and wild communion with the sovereignty of the land.