Put out of Fintan Houlahan's Stores on a stormy night, Fiddler Kelly is a quarrel-some, boastful fellow when Brogeen the leprechaun with a weakness for humans lets him into the High Fort of Sheen where the Little People are feasting and dancing; and before he's found out and chased off, he's learned the Magic Tune. ""He has no right to it. . . . He may even use it for harm. He may even play it badly"" so Brogeen must go after him and bring it back or, better still, make him worthy to play it. But Brogeen doesn't go further than Mary Nale's hearth and her husband Cleary's dumplings, not until the bonaveen (little pig) she buys at the fair, furious at being cheated of his pigsty, carries Brogeen on his back and pitches him off the top of the mountain into a cloud. Then it's touch and go with Bart Kelly, who's a new man from playing the tune. . . 'Tis a gran' visitation indeed--the doings of the Little People and their bigger-but-not-betters, with desolation and laughter and no blarney (but a glossary at the beginning for words like bonaveen).