On this occasion, he was going to study the refinement method for the flying swords before he worked on the sword art.
He had already briefly read through the refinement method last time, but this was an important matter, so Han Li naturally had to read it again in detail.
A short while later, Han Li withdrew his spiritual sense from the jade slip and narrowed his eyes slightly in contemplation.
According to the jade slip, if he wanted to rid his flying swords of impurities, there were three methods he could employ.
The simplest of those methods required no extra materials; he simply had to use his Nascent Soul flames to slowly refine all of the non-wood-attribute materials in the flying swords.
That was the simplest method and also one that incurred the least amount of risk.
However, all of the materials in his flying swords had already fused as one, and it would take an extremely long time to refine them in such a way. In fact, even three or four centuries may not be enough. During this process, he'd have to constantly be using his Nascent Soul flames, so he'd be significantly hampering his own cultivation.
As such, Han Li decided against this method almost immediately.
The second method was to use a cultivation art known as the Nineflame Metal Melting Art. If he could collect several types of special fire-attribute pills, then go into seclusion for around 70 to 80 years, he'd be able to use this cultivation art along with the power within those pills to forcibly rid the Azure Bamboo Cloudswarm Swords of their impurities.
However, this was an extremely risky method, and it would also harm some of the wood-attribute materials in the flying swords. Furthermore, the fire-attribute pills required were quite rare and not that easy to collect.
At the time, the elderly man was preparing to use this method to refine Han Li's flying swords for him in exchange for Golden Lightning Bamboo, but Han Li had not been a fan of this essentially self-mutilating method.
As such, there was only one final method left, and it was also seemingly the most implausible and time-consuming one.
The elderly man had enclosed a message stating that this method was only something that he theorized would work, but had never actually tried it himself. However, if one were to follow the instructions closely, they should have a good chance of success. Furthermore, if success were to be achieved, the rewards reaped would also be quite staggering.
This method involved a process that was known as "planting swords".
The process consisted of finding some spirit seedlings, then planting them in a place with abundant spiritual Qi. After that, the flying swords had to be sealed within these seedlings, and as the seedlings grew, all of the materials in the sword would
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