Balthus was an Aquilonian settler in the Bossonian Marches that appears in the novella Beyond the Black River. After he was saved by Conan from a Pictish ambush, they became friends and together tried to make a surprise attack on the Picts, alongside other warriors from Fort Tuscelan. He warned scattered settlers of the coming onslaught of the Picts and heroically died, covering their retreat to Fort Velitrium. Conan then decided to kill 10 Picts in retribution for his friends death.

Map of the Hyborian age :