The Breton lai is a narrative poem, usually accompanied by music, that appeared in France about the middle of the 12th century, carried by travelling musicians and storytellers called jongleurs. What is important about them is that they contain a great deal of faery and supernatural lore deriving from Celtic myth, legend and folktale. This collection of twelve tales focuses on faery lore in the lai tradition. Nine are taken from anonymous medieval jongleur sources; the other three are from the more courtly tales collected by Marie de France in the late 12th century. Gareth Knight, a scholar of medieval French as well as an established author on esoteric faery lore, provides a vivid and lively translation of each lai along with a commentary which takes a perspective both historic and esoteric.