Since Venarium isn't mentioed in any of Howard's stuff you probably wont see it in the comic.
'But the Picts are divided into small clans,' persisted Balthus. 'They'll never unite. We can whip any single clan.'
'Or any three or four clans,' admitted the slayer. 'But some day a man will rise and unite thirty or forty clans, just as was done among the Cimmerians, when the Gundermen tried to push the border northward, years ago. They tried to colonize the southern marches of Cimmeria: destroyed a few small clans, built a forttown, Venarium - you've heard the tale.'
'So I have indeed,' replied Balthus, wincing. The memory of that red disaster was a black blot in the chronicles of a proud and war-like people. 'My uncle was at Venarium when the Cimmerians swarmed over the walls. He was one of the few who escaped that slaughter. I've heard him tell the tale, many a time. The barbarians swept out over the hills in a ravening horde, without warning, and stormed Venarium with such fury none could stand before them. Men, women and children were butchered. Venarium was reduced to a mass of charred ruins, as it is to this day. The Aquilonians were driven back across the marches, and have never since tried to colonize the Cimmerian country. But you speak of Venarium familiarly. Perhaps you were there?'
'I was,' grunted the other. 'I was one of the horde that swarmed over the walls. I hadn't yet seen fifteen snows, but already my name was repeated about the council fires.'
Balthus involutarily recoiled, staring. It seemed incredible that the man walking tranquilly at his side should have been one of those screeching, blood-mad devils that poured over the walls of Venarium on that long-gone day to make her streets run crimson.
Beyond the Black River,
Robert E. Howard.