I recently read the Count of Monte Cristo. It's Christian themes are quite poignant and it especially focuses on revenge, redemption and overcoming anger.
Anything by Dostoevsky is a recommend. Crime and Punishment and the Brothers Karamazov in particular.
You might also like G.K Chesterton's; The Ball and the Cross. It about a duel between a devout Catholic and an ardent Atheist.
Another book is The Way of the Pilgrim. It's a Russian Orthodox work. It's a narrative but it's primary purpose is to convey teaching about the Orthodox monastic tradition of continuous prayer.