After I cultivated immortality, I discussed the theory of lifespan with a long-lived spirit.

Chapter 146 Sword Techniques and Supernatural Powers, Five Elements Sword Formation Greatsword Technique

After his shopping spree, Lin Er's newly acquired spirit stones were almost depleted. After buying a bottle of Qi-Nourishing Pills and Qi-Replenishing Pills, he had less than twenty low-grade spirit stones left.

He stopped shopping and took Luna home.

Now that he had acquired the intermediate-level spirit-gathering array, Lin Er couldn't wait to release the array diagram after arriving home.

A palm-sized Five Elements array flew out of his hand, rapidly growing larger until it covered the entire house in the blink of an eye.

Without needing to place any of the five elements' spiritual objects, the array diagram started operating on its own, and within a short time, it gathered a small amount of spiritual energy.

Lin Er frowned. The speed at which spiritual energy was gathered had only increased by 10% compared to before, which was far below his expectations and did not live up to the name of a mid-level array diagram.

Previously, the Spirit Gathering Array absorbed elemental power and converted it into spiritual energy. From this perspective, the elemental power near Watchtower City is not very abundant. This is probably why the Spirit Gathering effect is not ideal.

The elemental power is much richer in the wild, especially in places where monsters congregate, where the elemental power is even more concentrated.

Lin Er had already discovered this in the Misty Forest, but it also meant danger.

The array now comes with five illusionary flags. When placed according to the five elements, they can create a thin mist to block outsiders, but the array itself has no defensive capabilities.

If this were moved to a place rich in elemental energy in the wild, one would still need to be mindful of intruders while cultivating every day, and if they encountered something more...

Lin Er didn't know much about formations. The guild did sell introductory jade slips about formations, but they cost as much as 200 spirit stones, which he couldn't afford for the time being.

He still has over two hundred coins left, which he can use to continue buying low-quality spirit stones. However, he has been buying in large quantities recently, and the guild shop currently has no stock.

It should be noted that the magic stone mine has been temporarily shut down due to the invasion of demons, which means that the inferior spirit stones he had previously acquired were all stockpiled.

However, because these inferior spirit stones contain chaotic elemental power, they are generally used to feed magical pets and are not very useful to extraordinary individuals. Therefore, only Lin Er is buying them on a large scale.

Lin Er has been in Watchtower City for a while now. There aren't many magical pets in the city, so the market for these magical stones is small, and therefore the price isn't high at the moment.

However, if the magic stone mine remains closed, the stock of low-quality spirit stones in Watchtower City will dwindle, and the price will surely skyrocket.

This process will continue until the end of winter, when the elemental tides reach their peak, and the ores in the mines will gradually transform into magic stones. At that time, a large number of monsters will gather in the magic stone mines and devour the magic stones inside.

Once the elemental tides recede, the monsters disperse, and the danger level of the magic stone mine is reduced to a manageable level, operations will resume.

It will take at least two more months, and Lin Erke can't wait that long.

"It seems the elves are raising quite a few magical pets; they might have low-quality spirit stones."

Even if the Silvermoon Elf clan had a large number of low-quality spirit stones, they wouldn't give them to him for free. It also seemed that they didn't value human currency much, so buying them with money probably wouldn't work.

Lin Er immediately used the teleportation ring to tell Flora his thoughts.

The good news is that there is indeed a mineral vein near the Silvermoon Elf clan's territory, which produces a large amount of low-quality spirit stones.

The elves considered this vein to be of low quality and unable to produce many pure magic stones. Fortunately, they had raised a number of dragon eagles and tree spirits, which came in handy.

The bad news is that human currency is not widely used among the Silvermoon Elf clans because the clans are located in the Elf Forest, where there are no human settlements nearby, so human money is hardly needed.

The elves are currently operating on a barter system, where magical items circulate among them. The most common items are various magical seeds and magical plants, which virtually no elf would refuse.

However, these two items are quite expensive and not easy to obtain.

Flora looked thoughtful and said, "Lin'er, the clan is currently lacking parchment and blank books, as well as daily necessities such as needles, thread, and candles. Otherwise..."

"If you buy some to exchange, I don't think the elders will refuse."

Lin Er was overjoyed upon hearing this and readily agreed.

He immediately returned to Watchtower City and quickly purchased the necessary supplies, spending almost all of his remaining funds.

After returning to the Fallen Moon Forest, Lin Er teleported back to the platform directly, which was also to avoid suspicion.

As Lin Er stepped off the platform, he was met by Ilulian, who looked on in astonishment. "Your teleportation intervals are too short! Only a few days have passed, and you can use the teleportation ring again?" she exclaimed.

In fact, if he didn't hide it, he could teleport at any time, only needing to consume a wisp of spiritual energy each time.

He deliberately waited several days before openly using teleportation, and Illulian was so surprised; it seems he was indeed trying to cover it up.

Lin Er explained, "Actually, I just learned teleportation, I'm just using the ring to help me."

"I see."

Ilulian suddenly realized.

Lin'er continued, "Sister Ilulian, may I learn swordsmanship from you?"

"Aren't you a mage? Why are you learning swordsmanship?"

Ilulian paused slightly, her expression filled with confusion.

Lin Er then remembered that he was still disguised as a mage, but that didn't matter.

"My ability to manipulate objects requires me to learn swordsmanship to continue improving. If you don't mind, sister, please teach me swordsmanship. It would be even better if you had notes and a swordsmanship manual."

"Object Manipulation Technique —"

Illulian shook her head. She had never seen such powerful manipulation of objects; even the sword had turned into white light. Although she could react to that speed of flight and had sufficient means to deal with it.

However, as far as she knew, Lin Er was only at the early stage of the third rank, while she herself was at the peak of the fourth rank.

Illulian replied, "The swordsmanship I have mastered requires a long period of practice and is very difficult to improve upon. It took me a full hundred years to reach my current level, so it is not suitable for you humans to learn. You would be better off learning from those human sword saints."

The swordsmanship she mastered came from the Elven race. After entering the basics, it was quite mediocre with no special features. The advantage was that with enough practice over two or three hundred years, one could basically become a sword saint.

Illulian had a better talent in this area and only took a hundred years.

Lin Er smiled and said, "Sister Ilulian, you don't need to worry about that. I learn things very quickly."

Seeing Lin Er's confident demeanor, Ilulian didn't say anything to discourage him. Besides, Lin Er had helped her a few days ago, so it was reasonable for him to take out a swordsmanship manual.

"Come to my house first."

Lin Er nodded and followed Ilulian to her house.

Soon, Ilulian handed over two notebooks, saying, "Choose one of these two sword techniques, but don't blame me if you don't learn them."

Lin Er looked up and a notification popped up.

You visited a senior female swordsman. Because of your friendship, she is willing to teach you a sword technique. Please choose one.

Greatsword Technique

A single sword strike descends, as if cleaving a mountain. There are no fancy variations, only the purest power. The more magic power infused into the sword, the greater its power; at the very least, half of the magic power is consumed.

【Five Elements Sword Formation】

The five swords correspond to the five elements: metal, wood, water, fire, and earth. The metal sword is sharp and can pierce armor; the wood sword can entangle and trap enemies; the water sword is unpredictable and ever-changing; the fire sword can explode and burn; and the earth sword is heavy and suppressive. Five spirit swords are required to set up a continuous sword formation.