Amazing. Simply Amazing. This is the story of Pa and his son. They wait to hear and send the Blacksmith’s song to guide travelers along the Underground railroad. While the author notes that this is not a true story, me states that many things were used to guide people: songs, quilts, art, etc. Why not the song of a blacksmith. This is a powerful picture book. It emotes hope, and fear, and impatient waiting. A perfect book to start children on a love of history.