Anathi is paying for crimes that were never his. For what his parents did, he's sent down into the Pits, where the Shadow Clan's condemned fight the cast in the dark ? and many die there.
The sentence intended to break him instead forges a hero a disgraced clan didn't know it needed ? and the timing could not be worse. Humanity is losing its grip on the peninsula, and the relentless enemy that creeps and crawls through the dark is patient.
He can hold the line against the dark. Whether he can hold it against his own is another question.