Too often neglected (for a variety of reasons) Wales gave us not only Dylan Thomas and Roald Dahl, but the largely unknown and monumentally awesome Four Branches of the Mabinogion, a series of pre-Christian mythologies involving really, really cool stuff like Pwyll, who trades places with the king of the otherworld for a year and a day, and Math, who would die if he wasn't at war. . . .or had his feet in the lap of a virgin. This is mythology like you've never encountered—violent, scary, and wild as the woad-covered Celts who sang these stories to harp music in the red light of highland fires.