The next moment.
Under Su Shi'er's slightly apprehensive gaze, azure light reappeared within the Heaven and Earth Furnace.
"Thankfully, it seems the Heaven and Earth Furnace can refine even immortal pills.
But that only proves it truly deserves to be called a supreme treasure of heaven and earth.
In the Cultivation World, and even across the Six Realms, far more beings must have their eyes on this treasure than I imagined!"
Murmuring to himself, Su Shi'er inexplicably felt the pressure weigh even more heavily on him.
But he suppressed that pressure in an instant.
His attention remained fixed on the changes within the furnace. In just an hour, the failed Three-Source Immortal-Nourishing Pill took on a clear, luminous sheen, and a faint medicinal fragrance drifted out.
Seeing the pill's grade rise to that of a low-grade spirit pill, Su Shi'er's brows stirred slightly. His hands rapidly shifted through incantation gestures, swiftly suppressing the azure light within the furnace and extracting the low-grade Three-Source Immortal-Nourishing Pill.
In the past, removing spiritual pills, spirit stones, spirit crystals, and other treasures before the azure light faded would have carried some risk. After all, forcibly taking treasures out while that light remained could destroy them outright.
But now, Su Shi'er had mastered many methods of controlling the Heaven and Earth Furnace, making it far easier to handle than before.
Of the three Three-Source Immortal-Nourishing Pills, he intended to give one to Cen Yuting to help restore his cultivation, allowing him to guard an Immortal Pillar.
With his current cultivation, producing a low-grade pill could still be explained as a stroke of luck.
If he brought out a higher-grade Three-Source Immortal-Nourishing Pill, or even a supreme-grade one, it would only invite endless trouble.
Besides, a low-grade immortal pill was already effective enough.
Su Shi'er had