"Guarding the Dofu, in that case, not only must the power be strong, but the range of the formation that can be covered cannot be too small either. Have you ever heard of the Six Wheels Absolute Spirit Formation and the Heaven Covering Two Extremes Formation?" The white-clothed woman thought for a moment before mentioning two formation names that Zhao Di had never heard of.

  Zhao Di said with a hint of embarrassment: "No! I'm completely clueless about the Array Formation, please enlighten me, Fairy."

  "Heh heh, these two formations are improved versions of the ancient grand formation. It's normal that you haven't heard of them before." The white-clothed woman smiled slightly and continued: "The Six Wheels Absolute Spirit Formation can cover an area of about 50-60 miles in diameter, making it most suitable for protecting the entire cave mansion. Although this formation is not particularly outstanding in terms of defense, it excels in concealing spiritual energy and hiding terrain features. Even if a cave mansion covered by this formation is detected by a senior cultivator at the early stage of forming their elixir, they would still find it difficult to discover unless they deliberately investigate closely. As for the Heaven Covering Two Extremes Formation, it's purely defensive in nature, with limited coverage but extremely high defense capabilities. Even if four or five late-stage foundation-building cultivators launch a full-on attack, it can withstand them for half a day."

  "With the Six-Wheel Absolute Spirit Formation, you can cover up the entire location of your cave abode, and then use the Heavenly Cover Two Extremes Formation to protect the core area. By combining these two formations, as long as you're not targeted by a senior at the Golden Elixir stage, your cave abode will be virtually impenetrable and completely secure."

  Zhaodi nodded repeatedly, excitedly saying: "The fairy's words are indeed profound, the two arrays complement each other, each displaying their strengths and making up for their weaknesses, it's a good idea! Since that's the case, I dare ask the fairy, are these two arrays easy to set up, and what is the price?"

  The woman in white robes said with a hint of pride: "These two array methods are both ancient grand arrays, originally very complex. Even an experienced array master would need to spend several months setting them up properly. However, my father was a genius in the field of array methods and simplified and improved these two large arrays, creating corresponding flags and disks for each. Fellow Taoist, you only need to strictly follow the instructions, place these flags and disks in the correct positions, and then embed the spirit stones. This will allow you to activate the use of the law array. Even if you are unfamiliar with the way of arrays, you can still set up these two arrays within a short half-day period."

  "As for the price," the woman in white robes paused, saying: "The prices of these two spell arrays are both over 1,000 spirit stones. If fellow Daoist is sincere about buying both sets, let's settle on 2,000 spirit stones."

  "Two thousand spirit stones!" Zhao Di exclaimed in his heart, although he had mentally prepared himself and knew that the formation's price was not cheap, but he hadn't expected to spend two thousand spirit stones all at once.

  For some struggling foundation-building cultivators, 2,000 spirit stones were basically their entire net worth. He didn't dare to take out so many spirit stones at once. But these two arrays really suited his current needs, and he had no choice but to buy them!

  Zhao Di did not respond for a moment, but instead furrowed his brow in contemplation.

  Two girls did not urge, quietly waiting for each other's response, after all, this number is not small, if the other party is not considered at all and quickly closed the deal, it would arouse their curiosity.

  Zhao thought for a moment and said: "I don't have that many spirit stones on hand, I'd like to use this item to exchange for some, what do you think, Fairy?"

  After finishing speaking, Zhao took out a small red wooden box and lightly tapped it. The small wooden box floated steadily towards the woman in white.

  A woman in white opened the wooden box with a hint of doubt, and saw a half-transparent purple dan bead about an inch in size, emitting a refreshing and unique fragrance that was soothing to the heart.

  "Stay Young Pill!" The white-clothed woman, who had always spoken in a flat and calm tone, suddenly raised her voice. However, just an instant later, she regained her composure and asked Zhao Di, "Is this the legendary Stay Young Pill that can keep one's youth forever and prevent aging with just one dose?"

  "Not bad, it's this dan. I don't know what price the immortal wants to buy this dan for?" Zhao Di saw that his opponent's emotions were slightly out of control for a moment, and he knew that this Stay Young Dan would definitely sell for a good price.

  "I don't know if you still have this dan in your hands, I'm willing to buy it all, and the price will definitely satisfy you!" The white-clothed woman was not satisfied with just one Rejuvenating Pellet, and she had even more ideas.

  The fairy smiled and said, "This Rejuvenating Pellet was also bought with a large sum of my savings, where can I get more!" Zhao Di smiled wryly and said sincerely. The latter half of the sentence was true, on that day he had obtained three Rejuvenating Pellets from Jian Xiner, all of which were cultivated into ordinary Rejuvenating Pellets using small cauldrons. He had taken one himself, given one to Jian Xiner, and now the white-clothed woman's pellet was indeed his last Rejuvenating Pellet.

  After listening to Zhao Di's words, the white-clothed woman seemed a bit disappointed and said: "This Rejuvenating Pellet, our shop is willing to offer a price of 1,500 Spirit Stones. Fellow Daoist only needs to pay another 500 Spirit Stones, and you can take away the Six-Wheeled Absolute Spirit Array and the Heaven-Covering Two Extremes Array, these two sets of spell arrays."

  1,500 spirit stones! This is more than Zhao thought. It seems that all women, especially beautiful women, whether they are ordinary people or cultivators, attach great importance to their appearance. In this case, the white-clothed woman who can't see her true face should be quite good-looking.

  Thinking of this, Zhao Di secretly felt that the Rejuvenating Pellet was really a good thing. If he had the chance in the future, he would get another batch and use it to trade with the female cultivators. It was relatively safe and also quite valuable.

  But this idea was instantly dispelled. What if someone became curious about the origin of his elixir, wouldn't that be asking for trouble?

  Next, Zhao Di paid 500 Ling Stones and then took over dozens of array flags, array disks, and a jade slip from the green skirt girl. This jade slip not only detailed how to set up these two sets of arrays but also briefly mentioned some common sense and precautions about using array techniques.

  For a cultivator like Zhao Di who doesn't understand the way of formation at all, it's undoubtedly very useful. Zhao Di is also very satisfied with this very humanized service!

  After leaving the Xuan Yi Pavilion, Zhao Di went to several other places in the city, where he purchased some other items, including four or five types of elixirs and pill formulas that were beneficial for cultivators in the foundation-building period. Among these, two types of elixirs were only useful for cultivators in the early stages of foundation building, requiring three types of third-grade demon pellets as main materials to refine. The other two types of elixirs had an effect on cultivators in the later stages of foundation building, but required fifth-grade demon pellets to be refined!

  The fifth-grade demon pill is the inner elixir of a fifth-grade demon beast. The cultivation of a fifth-grade demon beast is equivalent to that of a human cultivator in the initial stage of forming the golden elixir, and such a demon pill is naturally not something Zhao Di can possess now.

  Zhao Di took the opportunity to inquire about the price of the demon pellets while purchasing Dan Fang. An ordinary third-grade demon pellet costs around 700-800 spirit stones; a fourth-grade demon pellet costs nearly 2,000 spirit stones per piece! As for fifth-grade demon pellets, they won't be less than 4,000 spirit stones.

  These are all common demon beast inner elixirs. If it's some extremely rare demon dan, the price is usually about twice as high.

  Such a high price also made Zhao Di give up the idea of directly buying elixirs to refine medicine. Otherwise, he would have bought a few elixirs from time to time and would have been targeted sooner or later.

  The main use of Yao Dan is for refining dan medicine, and this demand can be said to be endless, because the price has always been maintained at a relatively high level.

  And the materials for making monsters are relatively much cheaper.

  Zhao Di bought a few kinds of demon beast materials, some auxiliary materials for refining equipment, a batch of talisman materials, and some utensils for arranging the cave mansion, then left Xingxing Island and flew north.

  (Third update! The cover is finally out, it's really not a compromise, if you guys think it doesn't look good I'll try to change it again, thanks for everyone's support! Starting next week there will be categorized recommendations, hoping more people will come and read this book.)