The Mountain Opening Curse is considered another usage of the Earth Travel Technique.
The Earth Travel Technique forms a layer of True Qi around the body to specifically separate earth and stone, while the Mountain Opening Curse can remotely separate earth and stone to create a space or passage.
It's somewhat similar to another usage of the Water Avoidance Technique: the Water-Splitting Technique.
One is passive influence, and the other is simple active manipulation.
These are all secret spells, and although Lu Zheng's relationship with the Lu River God's Mansion is good, he was only given the most basic Water Avoidance Technique because of the gift of a Fish Leaping the Dragon Gate glass ornament at his wedding.
More advanced water control techniques like the Water-Splitting Technique were never mentioned.
"Young friend is from the Taiqing lineage of White Cloud Temple, of the Mystic Sect orthodox, who cultivates White Cloud True Qi. They can completely perform the Earth Travel Technique and Mountain Opening Curse, even if not as refined as those who have trained in specialized cultivation techniques, they aren't much weaker," Song Kaichuan commented.
Lu Zheng nodded, "Indeed, I've been quite fortunate."
White Cloud True Qi is dense and thick, mainly focusing on Cloud Qi, but its properties are not too extreme, allowing it to perform the Water Avoidance Technique, Earth Travel Technique, etc.
Unlike Fengyang Mountain, which excels in Thunder Techniques, wanting to concurrently cultivate other disciplines' spells requires one to be a genius or possess great power.
Of course, Lu Zheng's advantage is different from others. With the Jade Seal in hand, as long as he can get a basic understanding, he can use the Light of Fortune to increase proficiency.
The extremely difficult Earth Travel Technique and Body-Freezing Curse have both been mastered by him, let alone the simpler Mountain Opening Curse.
Yes, although the Mountain Opening Curse is an advanced spell of the Earth Travel Technique, the Earth Travel Technique is actually harder to master than the Mountain Opening Curse.
Put plainly, as long as your Dao Practice is profound, you can forcefully achieve the effect of the Mountain Opening Curse, but silently traveling underground is not something just anyone can achieve.
So, the Earth Travel Technique is difficult to learn and master, not an ordinary Earth Magic.
Song Kaichuan spent an afternoon explaining the details of the Mountain Opening Curse to Lu Zheng, then prepared to leave.
"Senior, are you still going to live in that cave?" Lu Zheng asked.
Song Kaichuan shook his head, "I just found a place to unwind, but I don't need it now, so it's yours."
"Then where will senior stay?"
"I have some free time, so I'll wander around," Song Kaichuan waved, then his body sank into the ground and disappeared.
The voice of Liu Qingyan came from the front yard, "I heard from Uncle Li that you're back!"
Lu Zheng responded, watching Liu Qingyan hurriedly walk into the backyard.
Her eyebrows gracefully arched, her smooth skin white as snow, hair like a waterfall, moving like a startled swan.
After more than a month apart, Liu Qingyan quickly approached Lu Zheng and directly leapt into his arms.
"Lu Lang, Qingyan missed you so much!"
Feeling the softness clinging to him, Lu Zheng lifted Liu Qingyan, twirled in the air, and then gently let go, smiling, "Qingyan, I missed you too."
Suddenly realizing, Liu Qingyan quickly pushed away from Lu Zheng, looking around, "By the way, has that senior left?"
"Yes, he's gone," Lu Zheng nodded, then took Liu Qingyan by the hand towards the bedroom.
Following him, Liu Qingyan's cheeks suddenly blushed, she bit her lip lightly and stammered, "Lu... Lu Lang..."
"Qing... Qingyan... actually wanted to, but... but mother said to invite you over for dinner tonight..."
Liu Qingyan swallowed nervously, stutteringly saying, "How about... tonight, Qingyan will follow your... follow your wishes..."
Lu Zheng paused, turning to see Liu Qingyan's bright and shy eyes, face as beautiful as radiant red clouds.
"You little fox spirit!"
"I wasn't thinking about that, and now you're tempting me, aren't you?!"
Lu Zheng gritted his teeth, struggling to say, "I've picked many hundred-year-old medicinal herbs on Wansong Mountain, and Elder Wansong also gave me a box of good medicine, which I haven't looked at. Since you're here, I wanted to share them with you."
Realizing her thoughts had strayed, Liu Qingyan's cheeks turned beet red.
Lowering her head, as though wanting to dig into the ground, "I... I..."
Liu Qingyan raised her head to see Lu Zheng's teasing gaze, then she lowered her head again, crashing into Lu Zheng's arms, "Lu Lang just loves to tease me~"
Lu Zheng laughed heartily, holding Liu Qingyan as they entered the bedroom.
Patted the gourd, Lu Zheng took out the wooden box Elder Wansong gave him.
The wooden box was a foot long, half a foot high, entirely made of pine wood, quaint and simple, appearing ordinary and not too large.
But Elder Wansong said these things were for Lu Zheng to practice with.
Lu Zheng gently opened the wooden box. ɴᴇᴡ ɴᴏᴠᴇʟ ᴄʜᴀᴘᴛᴇʀs ᴀʀᴇ ᴘᴜʙʟɪsʜᴇᴅ ᴏɴ novel(ꜰ)ire.net
"Ah!" Liu Qingyan exclaimed softly, "Inside here is..."
The inside of the box, appearing only as a square foot of space, was piled with various medicinal herbs that had been shrunk down significantly.
Lu Zheng reached into the box, gently pinching a miniature ginseng, and took it out.
The next moment, as the ginseng left the box space, it suddenly enlarged, growing with the wind, transforming into a ginseng over a foot long, resembling a humanoid wild mountain ginseng.
"This is at least a three-hundred-year-old wild spring ginseng. Although it's not a spirit medicine, it's a top-grade mortal herb!" Liu Qingyan exclaimed in surprise.
"Elder Wansong is truly generous, not only gifting me so many herbs but also including a treasure box with Nasumi in a Mustard Seed capability."
"Oh my, Lu Lang, what exactly did you experience on this trip to the Southern Border? This box of herbs, over two hundred century-old herbs, over twenty among them being spirit medicines!" Liu Qingyan exclaimed.
Although these spirit medicines have average spiritual energy, even the best ones cannot match the Jade Ginseng Xin Yuniang gifted; however, the quantity of twenty plants is astonishing, not to mention the hundreds of excellent herbs.
It's simply astounding!
So Lu Zheng thought, then closed the wooden box, turning to Liu Qingyan, "This matter is known only to you and me, so let's not tell Uncle Liu and Aunt. It's not very secretive, but it does involve a senior..."
Liu Qingyan nodded vigorously, "I understand, Lu Lang shouldn't tell Qingyan either."
"That won't do, you have to listen!" Lu Zheng hugged Liu Qingyan, giving her a deep kiss.
Moments later, Liu Qingyan, pouting her moist lips, tried to calm her breathing, then took Lu Zheng next door together.
Lu Zheng just briefly mentioned going to the Southern Border to play a few games of chess with a senior and receiving some rewards, without delving into details.
In the evening, taking out a sachet, calling softly for Liu Qingyan, Lu Zheng finally recounted the details of his trip to the Southern Border.
Liu Qingyan was indeed surprised, excited, and slightly fearful, "I didn't expect Lu Lang to be able to assist such a great senior demon!"
Lu Zheng smiled, "Furthermore, this 'Jade Water Pill Scripture' involves Alchemy Techniques, perhaps Qingyan would join me in researching it."
Liu Qingyan involuntarily looked up, asking excitedly, "Can Qingyan also learn?"
Lu Zheng, naturally, replied, "This technique is shared between me and Elder Wansong, passed only to family, so there's no issue."
Under the watery moonlight, the elated Liu Qingyan sincerely thanked Lu Zheng, ultimately agreeing to fulfill Lu Zheng's desires as promised.