A Question of Honor — Lindsay Buroker

With less than six months until his entrance exams for the famed Nurian warrior-mage academy, Yanko is sent to his uncle's salt mine for “hardening,” as his father calls it. He expects endless days of physical labor; what he doesn't expect is to have to choose one of the mine's prisoners as a sparring partner.

Not wanting his uncle to think him a coward, Yanko picks a big scarred man from Turgonia, a land known for its ruthless warriors. Only after his selection does he learn that he'll be expected to kill his opponent… before his opponent kills him.

A Question of Honor is a 19,000-word novella.