The Witness for the Dead by Katherine Addison 

When the young half-goblin emperor Maia sought to learn who had set the bombs that killed his father and half-brothers, he turned to an obscure resident of his father’s Court, a Prelate of Ulis and a Witness for the Dead. Thara Celehar found the truth, though it did him no good to discover it. He lost his place as a retainer of his cousin the former Empress, and made far too many enemies among the many factions vying for power in the new Court. The favor of the Emperor is a dangerous coin.

Now Celehar lives in the city of Amalo, far from the Court though not exactly in exile. He has not escaped from politics, but his position gives him the ability to serve the common people of the city, which is his preference. He lives modestly, but his decency and fundamental honestly will not permit him to live quietly. As a Witness for the Dead… Read more.