"Roar!"

Sure enough, after a few breaths, when the dust settled, the powerful blow of the "Yin Evil Thunder" did not really hit the "One-horned Rhino Beast" hard, but instead provoked its tyranny, and after roaring, it chased after Xu Hong.

It's just that Xu Hong at this time has already arrived in front of the mountain wall with a hole in the hole, and immediately, his mind spreads, and Xu Hong, who knows that the cave is only seven or eight feet deep, although he feels a little regretful, but he does not stay, and goes straight into the narrow cave.

"Well, you can stop the attack of the "one-horned rhinoceros"!"

I don't know what kind of demon beast it is, with the help of a crack in the wall, the cave that is slightly expanded, although it is not very deep, but with the huge size of the "one-horned rhinoceros beast", it must be inpenetrable.

Subsequently, Xu Hong, who was at the bottom of the distance from the end of the tunnel, danced the "mid-level magic sword" in his hand, and dug horizontally, Xu Hong knew that it was not really safe at present, and only multi-directional folding and excavation could be kept safe under the next crazy impact of the "unicorn rhinoceros beast".

"Bang!", "Bang!"

"Roaring ......"

After six or seven breaths of kung fu, Rao is Xu Hong held the "mid-level magic sword" to cut it, and he only dug out a passage of more than two zhang horizontally, but when he heard the roar, several violent impact sounds suddenly spread, and it was obvious that the "unicorn rhinoceros beast" was chasing after him.

Suddenly, the stones flew and the gravel splashed, even Xu Hong, who was in the depths of the passage, felt a strong sense of shock, and Xu Hong, who did not dare to relax at the moment, surged with spiritual power, waved the "Intermediate Magic Sword" in his hand, turned diagonally, and dug it out again.

"What a wicked beast who doesn't know whether to live or die! Since this place is blocked, I will take your sacrificial flag later!"

After half a cup of tea, Xu Hong, who was forty or fifty zhang deep into the mountain, stood in a slightly spacious cave wall space, and sensed the faint roar of the beast from the outside world for a moment, and his eyes narrowed slightly, bursting with a trace of cold light.

In this battle, Xu Hong's "Demon Ape Puppet" and "Yin Evil Thunder" were all abolished, Rao is so, but he still can't get rid of the "one-horned rhinoceros beast", even in the "early stage of foundation building" realm demon beasts, it can be regarded as the pinnacle of the ranks.

"Well, only some magic weapons have been destroyed to make the promotion of the "three-star mecha"!"

Immediately, Xu Hong, who had a decision in his heart, bowed his head lightly, and after whispering, he raised his hand and stroked it gently, and the half-waste "demon ape puppet" lacking a piece of material on his chest appeared out of thin air.

Although the "Demon Ape Puppet" can no longer be activated, its body, which is made of a large number of "Level 3 Refined Iron", can be used as a material for the promotion of the "Three-Star Mecha", especially the "Demon Ape Puppet" still contains several pieces of "Level 1 Iron Essence", which is the metal required for the "Five-Star Mecha".

Immediately, Xu Hong, who flashed a glint in his eyes, showed a hint of expectation on his calm face, and then, Xu Hong no longer hesitated, sat down cross-legged, and ingested a piece of "third-grade refined iron" acquired and delivered by Zhou Tai into the "reactor", and suddenly, a machine qì synthesis sound came out from the depths of his mind.

"Drop: Insert tertiary refined iron, with a reserve of 66 percent. ”

"Drop: Insert third-grade refined iron and first-grade iron essence, and the reserve amount is 82%. ”

......

"Drip: Insert the third-level refined iron, and the promotion reserve is completed, 100%!"

With pieces of black-brown "third-grade refined iron", Xu Hong continuously ingested into the "reactor" space of the "Samsung Mecha Yuanzhu", and bursts of "intelligent light brain" prompts sounded one after another.

Until Xu Hong took a large number of "third-level refined iron" acquired by Zhou Tai, all of them were taken away, plus the fine iron body of a "demon ape puppet", and five medium-level magic weapons containing "third-level refined iron" were still filled, and the "intelligent light brain" side prompted the completion of the promotion reserve, for the promotion of the "three-star mecha", Xu Hong spent a lot of money this time.

Then, Xu Hong, who endured the pain of his flesh, flipped his wrist, and a pile of "lower grade spirit stones" were ingested into the "energy furnace" of the "three-star mecha yuan bead" one by one without stopping.

"Drop: Energy Furnace Reserves, two percent!"

"Drop: Energy Furnace Reserves, five percent!"

......

"Drop: Energy Furnace Promotion Reserve Complete, 100 percent!"

In a burst of "Intelligent Light Brain" prompts, after nearly 12,000 "Lower Grade Spirit Stones" ingested into the "Energy Furnace", the preparations for the upgrade of the "Samsung Mecha Yuan Bead" were completed.

The promotion of the mecha is the process of constantly devouring metal and energy to evolve itself, and then, Xu Hong, who has a tense face, directly gave the last order.

"Level up!"

"Buzz ......"

Suddenly, the bright silver "Mecha Yuan Bead" suspended in the sea of Xu Hong's Divine Court trembled slightly, and then, as if it was stirred by an inexplicable force, it slowly spun away.

"Drop: One percent of progress. ”

"Drop: Two percent progression. ”

......

"Drop: 100% progress, upgrade the "four-star mecha" complete!"

It wasn't until an hour of kung fu that Xu Hong's "Samsung Mecha Yuanzhu" suspended and rotating in the sea of Divine Awareness gradually stopped, and at the same time, the successfully upgraded "Intelligent Light Brain" prompt sound resounded crisply in Xu Hong's mind, making Xu Hong, who was tense, look slightly soothed.

"Whew...... , four-star mecha!"

Seeing that the "three-star Yuanzhu" was finally successfully promoted, Xu Hong exhaled lightly, and immediately, as if he had thought of something, Xu Hong, whose face was slightly flushed, made a breakthrough with his fellow cultivators, and skyrocketed to the spiritual power of the "Eleventh Layer of Qi Training" realm, and at the same time rushed towards the "four-star mecha Yuanzhu" who had been promoted to the successful stage, his words were looking forward to speaking out with joy.

"It's time to open the mech's storage space!"

The "Mecha Source Bead", which is formed by the fusion of "Empty Boundary Beads", "Secret Soul Silver" and "Xingyuan Gold and Iron" by the "Intelligent Light Brain", can not only be combined with the divine soul, but also has its own space, one of which is the "Reactor" space that can devour many "Reactor" spaces containing "gold and iron essence" and strange stones.

The other two spaces, one is the "Energy Furnace" space, and the other is the "Storage Space", which is different from the "Reactor" and "Energy Furnace", in the "Storage Space", Xu Hong has a lot of items from the "Federation Universe" world, among which there are powerful weapons for self-protection.

The size of the three spaces of the mecha source bead that was originally damaged and returned to its original state has been reduced from two cubic meters to one foot square, so Xu Hong can't ingest too much of the material every time he ingests it.

If you want to reduce the dissolution of the items in the "storage space" due to space oscillation as little as possible, only when the "four-star mecha" is reached, it is appropriate to reopen the "storage space".

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