[Hanhai Cold Current, also known as Hanhai Deep Cold Liquid, is taken from the depths of the Ice Sea, the temperature is extremely low, and it contains terrifying energy that can completely freeze the vast sea. 】

Cheng Xing listened to the prompts given by the system, and couldn't help but feel interested, "This should come from the sea of ice in the four seas." ”

With these three items, plus Cheng Xing's strange fire, all the conditions for awakening Xue Zhen are met.

"Hehe, Old Man Xue, you are quite well prepared, you actually went to the Ice Sea, which Douzong can't easily dive, and took the cold current of the Hanhai Sea that only appears at the bottom of the sea, it seems that this is a tough battle." The smile on Lin Lao's face gradually faded, and then he looked at Cheng Xing.

"Young man, although you have a different fire body, you also have to be careful to deal with this cold snap of the Han Sea."

In the face of Lin Lao's kind reminder, Cheng Xing also responded with a smile, in his eyes, he could see that Lin Lao was completely sure to deal with the invasion of this extreme cold, so he would say this to himself.

With a wave of his palm, dozens of bottles of pills appeared in front of everyone, as well as a large number of medicinal materials with pure energy and countless high-level demon cores.

"Oh my God, these lowest-level demon cores are all sixth-order peak demonic beasts, as well as this vine leaf flower dragon that contains terrifying energy..."

An exclamation came from behind Lin Lao, focusing everyone's attention on this pile of medicinal materials.

"Awakening Xue Zhen is a very difficult task, and it will consume a lot of fighting energy and soul power during this period, so I prepared supplies in advance." The Snow Venerable introduced the effects of the pile of items in turn.

To Cheng Xingdu's surprise, there were seven or eight kinds of medicinal materials to restore soul power, and it was hard to say that this was not a big deal.

With these medicinal materials as a foundation, everyone was more confident, but there was a rare solemnity on Lin Lao's face, which was different from the previous conversation and laughter.

"Once the Extreme Cold Constitution is frozen, it is not so easy to unravel. Since its discovery, no one has succeeded in thawing this terrifying ice. ”

Although he shouldn't say such frustrating words at this time, Snow Venerable didn't refute it, after all, it was the truth.

Venerable Snow said calmly: "If it doesn't work, you have to try, if it happens, the situation of such a division in the Far North may be able to completely change in the next ten years." ”

In order to alleviate this embarrassing atmosphere, Xue Xi took the lead and asked Cheng Xing to explain the next process, and Lin Lao kept asking for some details, without a trace of arrogance.

After some preparations, Cheng Xing and Lin Lao followed Venerable Snow into a secret room, and the entire ice bed was also moved in.

There was a huge Ding Furnace in the middle of the secret room, pouring all the dark blue liquid into it, and then stuffing the Nine Transformation Soul Restoration Pill into Xue Zhen's mouth, and the Yin and Yang refining body was scattered under Cheng Xing's prompt, and it was also directly sprinkled into the Ding Furnace.

The body covered with ice was submerged in the dark blue liquid, perhaps because of the same extremely low temperature, which made the two have a tendency to assimilate, and the Yin and Yang refining body floated in the liquid, like stars emitting a little fluorescence, wandering in the liquid unhurriedly.

"Bang"

With a move of Lin Lao's palm, a dark blue flame appeared, and the flames made bursts of sound similar to ocean waves when they rose, and the rhythm of the beating was also very similar to the waves.

"Is this...?" Cheng Xing looked at this strange flame, but he couldn't feel the breath of the strange fire, and he couldn't help but be a little curious.

"Hehe, this is a beast fire in the sea near Haixinyan, a beast fire called Qianlan Demon Whale, which was not strong enough back then, so I could only watch Haixinyan drift away with the current, and finally had no choice but to kill several demon whales to obtain this fire."

Lin Lao's face was full of regret, and his eyes were full of complicated looks, but then he disappeared.

Cheng Xing made a move with the palm of his hand, and the white-pink flame that fused the cold fire of the bone spirit and the spirit fire of the ten thousand beasts rose up in front of him, facing the huge furnace three or four meters high in front of him, and it was very terrifying to heat the cold current of the Hanhai Sea inside.

Although the solution given by the previous system was to use different fires to heat, but Cheng Xing did not explain this, after all, one more person means more power, not to mention that Lin Lao's flame strength is far beyond ordinary flames, although it is not as terrifying as different fires, it can also help when it is good.

Besides, with such a huge amount of work, let Cheng Xing complete it alone, he really didn't have this confidence, just manipulating the flames would consume a lot of fighting energy and soul power.

I saw that the huge Ding furnace was under the extreme cold of the Hanhai cold current, and the wall of the furnace with exquisite patterns carved on the outside was already covered with frost, and the dark blue liquid that was originally as viscous as honey inside had begun to frost around Xue Zhen, and the shiny crystal flowers were spreading rapidly.

"Old Lin, let's start."

Cheng Xing said in a deep voice, and a white-pink flame appeared directly below the huge Ding Furnace, and the terrifying temperature was accurately released under Cheng Xing's control, constantly heating the Ding Furnace.

Lin Lao nodded silently, and the faint blue flame quickly formed a ring of fire, guiding the overflowing temperature around it, and at the same time, the soul power was like a big hand, mending Cheng Xing's flames.

Looking at the flames that had become more vigorous under the repair, Cheng Xing also said secretly in his heart: "It seems that this Lin Lao is worthy of the title of Sect Master of Alchemy, such an old and spicy fire control and precise soul power, I really can't compare to it now." ”

After sighing secretly in his heart, Cheng Xing tightened his mind and devoted himself wholeheartedly to the heating work, and the fighting energy in his body was also full of horsepower, and he did not hesitate at all, anyway, the fighting energy was consumed and the supply of the elixir prepared by the Snow Venerable was exhausted, although the cultivation was completed.

In the huge secret room, the flames of two different colors were constantly swaying, and the frost that was originally covered on the outer wall of the Ding Furnace had now subsided, revealing its original pitch-black appearance, and the dark blue liquid inside, those frozen crystal flowers, also dissipated.

The Yin Yang Refining Body Scatter was constantly wandering, and the medicinal power released began to drill into the solid ice wrapped around the body under the warm roasting of the strange fire, and under this continuous erosion, the ice layer that was originally tightly sealed actually appeared cracks in some parts.

And it has taken half a month for these cracks to appear.

Cheng Xing's whole person became a little haggard, and there were several empty jade bottles beside him.

"Squeak..."

The heavy door of the secret room was pushed open, and Xue Lingqiao's face was full of worry, holding a jade plate in her hand, and in a box lay a hot elixir that had just been baked.

looked at Cheng Xing's tall back, his eyes were full of distress.

"It's been half a month, and it's not yet..." Xue Ling lowered her voice, and Xue Venerable was watching from the sidelines.

In the past half a month, Xue Ling has been sent into the freshly refined pill from time to time, and now the temperature in the secret room is much higher than before, and the dark blue liquid no longer releases severe cold, and even the layer of ice on the surface of Xue Zhen's body is visibly thinner to the naked eye.

"It's only been half a month, and it's still a long time, so don't worry too much." Venerable Snow took the tray and carefully distributed the elixir beside the two of them.

"At this rate, it will be very fast."