Whoosh!!!
In a stretch of the Star Sea glittering with stars, a Flying Boat shining with Five-Colored Spirit Light streaked through space like a meteor...
Ye Han sat cross-legged in the Flying Boat's Great Hall, his hands constantly forming gestures and sending seals into the High Lord Pill Furnace. He was not refining pills inside it, but a pitch-black crystal stone the size of a fist. As three strange flames-the Immortal Spirit Strange Flame, Hurricane Strange Flame, and Purple Dawn Strange Flame-continuously poured in to refine it, drops of black liquid began seeping from the stone.
This thoroughly unremarkable-looking black crystal stone was no ordinary treasure. It was black profound geng metal, a material for Innate Immortal Treasures.
It was the finest treasure material he had found in the Storage Bag of the Half-Step True Immortal, Empty Demon Old Ancestor. It was a material Empty Demon Old Ancestor had used to strengthen his Life-Bound Treasure.
In a true comparison, powerful as Ye Han's Life-Bound Treasure was, its strongest attacks were still weaker than those of Empty Demon Old Ancestor's Life-Bound Treasure.
The extraordinary power of Empty Demon Old Ancestor's Life-Bound Treasure had much to do with his use of black profound geng metal to strengthen it.
Perhaps Empty Demon Old Ancestor had only recently obtained the black profound geng metal, which was why such a large piece still remained in his Storage Bag.
Although it was only the size of a fist, its value actually rivaled half a Supreme Immortal Treasure.
That was right-a Supreme Immortal Treasure, not an Immortal Treasure!
Using it to refine and strengthen Ye Han's Life-Bound Treasure would increase the Thunderous Five-Element Golden Cudgel's power by at least a third, bringing it up to the level of Empty Demon Old Ancestor's Life-Bound Treasure.
However, the black