"The Baronet's Song" by George MacDonald,

Mute little Gibbie Galbraith leaves the city's slums when his father dies, seeking safety in the Scottish Highlands his family once inhabited.  Pure-hearted and intelligent, Gibbie finds a new family, but also makes enemies among those who think he is half-witted, insolent, or a thief.  He grows into a fine young man and eventually inherits a home of his own.

I was kind of irritated by this book when I'd first finished reading it because Gibbie doesn't really have a character arc.&nb...