Hun Tiandi Pill

"Return Pill?"

Hun Tiandi was abruptly startled when he heard this.

With his experience, he naturally knew exactly what Yao Wan meant by Return Pill.

It was a technique that seemed both familiar and unfamiliar to alchemists from the low ranks to the high ranks.

It was familiar because alchemists had more or less come into contact with the theory of alchemical Return Pill from the moment they first began learning alchemy. In essence, it was also a way to reuse certain Young Pills that had failed in refinement but had not yet become wasted pills.

And an understanding of pills and medicinal ingredients could also greatly improve the success rate of secondary refinement based on Return Pill.

It was unfamiliar, naturally, because Young Pills that could be used for Return Pill, or pills that had failed during the first refinement, were actually exceedingly rare. Most had already turned into wasted pills that could not be reverse-recovered, leaving no way to even begin Return Pill.

After all, even though alchemists were all wealthy and free-spending, that did not mean every medicinal ingredient in the world could withstand such extravagance.

The Return Pill method was, in essence, an alternative way of saving alchemical resources that alchemists had accumulated over tens of thousands of long years of development.

And the Hun Tiandi before them, though human, had in essence already completed an initial fusion with the Emperor Grade Young Pill. In other words, his current self was a Young Pill that was already transforming toward a completed Emperor Pill.

Although the Emperor Grade Young Pill was gone, if they refined Hun Tiandi and used him as the pill, it should likewise be possible to break through to the Dou Di realm.

In fact, the current Emperor Grade Young Pill had obtained Hun