I really loved this sequel, albeit not from the original author. I like to think Dickens would approve of what this author did with his character.
Jack returns to England as an adult and has matured and learned new skills. Among them is a talent for accents which allows him to move like a chameleon among the rich people he stole from as a boy as easily as he can slip back into the criminal element of his childhood.
The character development took him through some hard choices about who he wanted to be. Very well written and entertaining.