Torrens gave a salute and started to leave when the altercation with Athinar began. Torrens stayed at the edge of the town square for a few moments to see how the events fared, interested in seeing how this encounter turned for Athinar. A few seconds later, after Athinar had made his response (whatever it was), Torrens turned again and sprinted down the road and out of the town. He found a road which didn't lead to a village they had already razed, which Octavius wasn't covering and which hadn't been thoroughly blockaded by the orcs, and sprinted down it. While he could not match the pace of a galloping steed, Torrens could maintain a full sprint indefinitely, which should be adequate to overtake any villagers fleeing on foot.
After maybe half an hour of travel, he saw the light of torches appear from over the horizon. From that torchlight Torrens could tell that they seemed to be ordinary people travelling away from the town, and lacking any notable luggage, and he inferred that those people must be the refugees he had been sent to hunt down. Instead of charge straight in, however, he left the road and ascended a hill. The undergrowth around his feet burst into flame, although he figured that he was far enough back for that not to be easily noticed. From the top of the hill he had a far better view. The numbers in this group of refugees was quite large- it looked like it must contain several full households' worth of people. To simply charge them, being incandescent as he is, would have them all scatter into the night, meaning he could easily lose some of them. Although he grinned as he noticed that ahead of them, another few kilometers away, was the beginning of a forest. He would wait for them to be in the middle of the forest, then strike.
So Torrens returned to the road and continued to follow his prey, keeping as far away as he could without losing track of them, although even that could be too close, considering that he had no means of concealing his fiery glow. Still, he continued, and as the villagers entered the forest Torrens changed from a walk to a sprint in order to catch them before they left the forest. When he himself reached the edge, he immediately got to work on starting a forest fire, blocking off the way they had came. Torrens spent a good few minutes cultivating the inferno and feeding on the flames, building a ferocious wall of fire which would eventually grow and consume the forest.
However, Torrens could not trust this bush fire to expand fast enough to overtake the villagers before they escaped. He needed to fence them in. So Torrens gathered up some of the energy he ahd gained from this fire and unleashed it all in a ferocious jet directed from his feet, rocketing him high into the air, soaring across the forest to the other side in mere seconds. To land, Torrens did not bother to rocket to a gentle landing, for rocketing is horribly inefficient. Instead, Torrens crash landed in a tree, which exploded into flame on impact. His return to the ground was far from graceful, involving him falling face first into the dirt, but he picked himself up and got to work on setting up a second wall of fire, sandwiching in the villagers.
Torrens cackled with glee, for forest fires were his favourite type of fire. The ferocity, scale and destruction were unmatched by anything else on this world. Sure, other fires might burn hotter, and some things such as lava are hotter again, but none of those span many hectares at any given moment or leave whole swaths of countryside a charred wasteland. His only regret was that he couldn't be in all of it at once, to enjoy every bit of the fire.
He did eventually find the villagers, but by it was already too late for them to escape, as the fire was closing in much faster than they could hope to go around and escape. Given the apparent surety of his victory, Torrens didn't bother to kill them on sight. Instead, he chased them deeper into the forest, although none of them lasted long before they succumbed to the heat or the smoke. Torrens stayed for some hours more, basking in the flames to bolster his strength, and also scouring the rest of the forest and the surrounds to see if he could spot any survivors. While the chances were remote, a villager or two could have escaped his trap and fled into the night. Torrens was counting on that being exceedingly improbable, since he had no hope of finding them if they did successfully escape as they would be employing stealth and could be anywhere in the countryside. For official purposes, he would assume he had caught all of them which had been taking his route.
It was not until the sun had already been up for an hour that the fires started to wane as the forest burned out. Only then did Torrens begin to make his way back to the Dungeon. He would probably get there sometime around midday or the afternoon, and he would seem noticeably brighter and hotter thanks to that forest fire.