With everything ready, a Black-Horn Flower was tossed into the furnace.
The instant its petals touched the Sword Qi, they were shredded into powder, and the impurities were flung out of the field like black sand.
The other supplementary ingredients were added one after another, their impurities broken down and the remaining medicinal liquid suspended at the furnace's center.
Under the scorching heat of Burning Like Karmic Fire, it gradually contracted into emerald-green droplets.
Song Yan's brows drew together slightly. His Divine Sense detected that the medicinal potency was escaping too quickly, and he immediately adjusted the strength of the Sword Qi. A buzzing tremor rang out inside the furnace.
He flicked a finger, sending half a Moon-Bearing Lotus Seed sliding into the furnace.
Upon encountering the Sword Qi, the seed actually quivered like a living creature. Its outer coating peeled away, fully exposing a core like moonlight.
Song Yan abruptly changed his Sword Art. The Sword Qi within the furnace shifted from hard to soft, slowly drawing out the lotus seed's essence like a spring breeze brushing willow branches.
The lotus seed merged with the earlier Black-Horn Flower liquid, instantly bursting with silver light. A strange sound came from within the Sword Qi field.
This was a sign of conflicting medicinal properties.
"This is bad." Song Yan gave a low cry, swiftly sweeping his sword fingers.
The Sword Qi within the furnace abruptly divided, splitting the silver light into countless fine streams like Dissecting the Ox of E Ding.
At the same time, the toad lid shook violently and released a stream of cool Sword Qi on its own, forcibly suppressing the chaotic, rampaging medicinal potency.
This was the Sword Furnace's regulating function, and what Song Yan considered the most ingenious part of Chen Yi's design.
This Pill Furnace,