Who is Taleswapper (Bill Blake) from Seventh Son and what is their importance?

Taleswapper comes to Vigor town seeking work and telling tales. After being turned down by Armor for work, shelter and tales, Eleanor Miller Weaver tells him to go to Alvin Miller's, and that he will give him work and shelter. Blake stops at the church before heading there, touches the altar, and tells the Reverend his altar has been touched by the devil.