Rong Jiaojiao frowned slightly: "Evil cultivators are interfering in the wars in the mortal realm?"

“I’m not entirely sure.” Li Li said gravely. “As you know, there are many ethnic minorities in the southwest who know all sorts of strange and unusual techniques. What’s more troublesome is that the other side seems to have mastered some kind of toxin that military doctors don’t understand, and conventional antidotes have limited effect.”

Rong Jiaojiao said, "But I don't know how to detoxify!"

Elder Li laughed and said, "I don't know either. We just need to check if the wounds are tainted with evil energy or resentment, and then find out if there are really evil cultivators interfering in the war in the mortal world."

Rong Jiaojiao nodded: "Understood!"

Elder Li handed over a spatial talisman: "This is a reward from headquarters. We know that you, like your master, have an excellent talent for drawing talismans. There are quite a few mid- to high-grade talisman papers inside. The captain also gave you an additional one hundred top-grade talisman papers as a reward."

Rong Jiaojiao accepted it with both hands: "Thank you so much, Senior Tian Shu."

Elder Li nodded. Just as he had guessed, Rong Jiaojiao did indeed know Senior Tian Shu.

After flying for about five hours, a series of mountain ranges appeared on the distant horizon.

Arriving above a mountain hollow, Li Li controlled his flying sword to descend: "The temporary field military area is just ahead. Let's go directly to the field hospital."

As the altitude decreased, Rong Jiaojiao saw temporary military tents scattered on the ground, with a prominent red cross painted on several of the larger tents in the center.

The flying sword landed on the outskirts of the camp. As soon as the two landed, a squad of heavily armed soldiers surrounded them.

"Halt! Who goes there?" the leading officer shouted sternly.

Li Li showed his credentials: "Special department, ordered to handle the soldier poisoning incident."

After carefully checking the documents, the officer's expression softened slightly: "Please follow me, both of you."

Judging from his completely unsurprised expression, he was clearly aware of the existence of the special department.

Passing through layers of police tape, the strong smell of medicine and faint groans reached my ears.

In the field army's temporary hospital, dozens of soldiers were divided into several medical tents. They were all lying on makeshift hospital beds, their faces were all bluish-black, and their exposed wounds had an eerie purplish-black tinge.

A gray-haired military doctor saw them and quickly came forward: "Are you from the Xuanmen Group?"

Elder Li nodded: "Yes, I am Li Li, and this is Rong Jiaojiao, young friend Rong!"

The old military doctor couldn't stand her bookish manner. He said anxiously as soon as he finished speaking, "You've finally arrived! We've tried everything, but the wound is still getting worse."

Elder Li immediately went to the nearest bedside to examine the patient. He gathered a wisp of spiritual energy at his fingertips and gently touched the injured person's wrist. After closing his eyes and sensing for a moment, his expression changed drastically: "This is not ordinary bone-corroding poison. It is mixed with blood-fiend energy!"

The military doctor looked at them in confusion: "What bloodthirsty aura?"

Elder Li didn't reply to him, but said to Rong Jiaojiao, "Young friend Rong, come here!"

"yes!"

Rong Jiaojiao said to the military doctor, "Uncle, please step back from the patient and let us try."

The military doctor was puzzled, but he had no other choice but to step aside and watch.

Rong Jiaojiao took out seven purification talismans and formed a purification array, enveloping all the patients in the tent within it.

She formed a hand seal and softly uttered, "Purify!"

The rune array immediately lit up with a soft white light, and the black energy at the wounds of the injured soldiers surged like boiling water, crawling out of the soldiers' wounds like black worms.

The military doctor and the surrounding medical staff watched this scene in shock, and some even subconsciously took a few steps back.

A moment later, the black mist gradually dissipated, and the wounded man's bluish-black complexion began to improve.

Li Li immediately took out an antidote pill and gave it to the army doctor, saying, "Dissolve this in water and feed each person a spoonful. After that, you can use your medicine to treat them."

The military doctor, as if waking from a dream, took the medicine and hurriedly called to the nurse, "Quick! Prepare antibiotics and wound cleaning!"

Rong Jiaojiao followed the same method, dispelling the blood evil energy from the wounded in the other tents.

The old military doctor followed closely behind Rong Jiaojiao, watching her miraculous methods.

He used to not believe in witchcraft or sorcery, but from today onward, he has decided to believe in them.

Elder Li stayed by Rong Jiaojiao's side the whole time. After she finished her treatment, he said, "We must solve the problem at its source, otherwise these soldiers will continue to be invaded by the blood evil energy."

Rong Jiaojiao asked, "Elder Li, did you see anything special about it?"

Elder Li said, "I suspect that there are evil cultivators on the battlefield who are collecting the blood and souls of the soldiers to practice evil arts."

Rong Jiaojiao was filled with shock and anger: "Are you telling the truth?"

Elder Li said with a solemn expression, "Although it's just a guess, we have to prepare for the worst."

"In your opinion, could it be that the other party hired someone to do this?"

Elder Li shook his head: "I don't know, but I'm worried about something else..."

"Something else?" Rong Jiaojiao looked at Elder Li's worried face, and a possibility occurred to her. She exclaimed in shock, "You mean the demon spirit?"

Elder Li nodded: "That's exactly what I'm worried about."

Rong Jiaojiao asked in confusion: "Aren't the souls of warriors protected by merit? How dare the demon spirits be so easily tainted?"

Li Li's expression grew increasingly solemn. He said in a deep voice, "This is precisely the strange thing. Logically speaking, soldiers are full of vigor and have the protection of their merits in defending the country, so ordinary evil spirits cannot get close to them. Unless..."

"Unless what?" Rong Jiaojiao pressed, her eyes filled with urgency.

“Unless the demon spirit uses the body of an evil cultivator to transfer the damage caused by merit to the evil cultivator, while it hides behind the scenes to control things.” Li Li’s voice was very low, as if afraid of disturbing something. “In this way, the demon spirit can devour living souls to strengthen itself without having to suffer the backlash of merit.”

Rong Jiaojiao gasped: "Doesn't that mean there's a high possibility that a demonic cultivator possessed by a demonic spirit is hiding on this battlefield?"

Li Li nodded heavily: "Very likely."

Rong Jiaojiao said, "Let's go investigate first. Perhaps there are bandits on the mountain using evil magic."

Rong Jiaojiao hoped it was just an ordinary evil cultivator, otherwise things would become extremely complicated.

Li Li pondered for a moment, then said in a deep voice, "Alright, let's confirm the situation first."

The two quickly left the field hospital and flew towards the hill where bandits were being suppressed. Gunfire and artillery could be heard constantly from there, and shouts of killing could be heard as they got closer.

The closer you get to the battlefield, the stronger the stench of blood becomes, with a faint, almost imperceptible, smell of decay mixed in.

Zi Ling reminded him, "Master, Elder Li has a bloodthirsty aura."

Rong Jiaojiao frowned, made a hand seal with her fingertips, and with a swipe in front of her eyes, activated her Heavenly Eye.

Above the battlefield, countless strands of black mist, as fine as hair, intertwined to form a net, greedily absorbing the blood essence dissipating from the battlefield.

"Elder Li, look!" she pointed to the black mist, "Someone is collecting the blood and evil energy from the battlefield!"

Li Li's eyes sharpened: "There's definitely a problem! Following the flow of this black energy should lead us to its source!"

The two followed the direction in which the black energy was gathering and soon arrived at a hidden cave.

The cave entrance was hidden by dense vines, and it would be impossible to find without divine sense.