The story for today is called FIDDLER PLAY FAST, PLAY FASTER. I don't believe you can get this story in a single book format, but there is a collection of short stories by Ruth Sawyer (out of print, I believe, unfortunately - you may be able to find it on Amazon) that contains this story. But it is a gorgeous, gorgeous Christmas Story.
Stricken by the power in the man's voice Billy Nell agrees. However, he fears he may have made a bargain with Noid ny Hanmey, the Enemy of the Soul: the devil himself.
Billy Nell seeks to find an answer to this question: What manner of spirit is the Enemy of the Soul? Can he be anything he chooses to be - a devil in hell or a fine gentleman on earth?
"Is the man noble or is he the devil?" asks the abbot whom Billy Nell begs an answer from. "I cannot say. But go. Carry salt, carry iron and bollan bane. Play a dance and watch. Play another, and watch. Then play a Christmas hymn and see!"
This is the Christmas tale of Billy Nell Kewley, the fiddler of the Isle of Man, who goes to fiddle for one who may be merely a fine gentleman, or else the very devil.