The purple Military Fire was Ou Yangming's biggest secret and reliance.

Nonetheless, he was shocked to find that the fire had endless wonderful uses as though it was beyond the smithing aspect.

Whether it was the refinement of the crystal ball or the elimination of a powerful mental conception's invasion, the Military Fire displayed its magical effects. This time, the fire showed its peculiarity when Ou Yangming began to fuse Space Runes. Not only did it get rid of the risk of an interspatial explosion, but it also perfectly merged two different interspatial structures.

Ou Yangming sighed a long breath of relief as he sensed the marvelous change in the leather bag.

No matter how many unique abilities the purple fire had, Ou Yangming thought it was better if it had greater functions.

The young fellow later curbed his thought and continued to construct a new composite rune combination.

Under his mighty mental power's control, the combination was completed in a swift. The difficult rune could only be finished in such a short time because of his remarkable mental power.

Following that, the rune was sent by his mental conception into the leather bag.

The leather bag squirmed for a while again before it stopped. It lasted for a split second, but the Military Fire had already merged the rune combinations.

As compared to the first time when Ou Yangming was extremely careful, he was more familiar with the process during the second time, hence he completed it effortlessly.

Nevertheless, it was then when Ou Yangming suddenly tensed up because he vaguely sensed someone looking at him.

In actual fact, the young fellow was already being watched when he entered the secret realm, but he was not regarded with much importance similar to how a lion would not care about an ant.

When Ou Yangming retrieved the leather bag to refine an interspatial bag and successfully integrated the third set of composite rune combinations, he finally attracted attention.

The person who was watching him was still superior, but the meaning behind the line of sight was entirely different.

Ou Yangming's mentality wavered a bit but quickly returned to normal.

Without the Military Fire's assistance, Ou Yangming alone would certainly be affected by that sight, causing his success rate to be reduced.

Given that the Military Fire could guarantee his success, not to mention the harmless sight, he would not be fearful even if countless evil thoughts surrounded him.

This was because he knew he was definitely safe before he refined an interspatial bag.

Ou Yangming curbed his thought once more as if he was clueless about every change in the outside world. He fully focused on the process and began to depict new rune combinations.

Each time he managed to form a combination, substantial mental power would be consumed. Consequently, his forehead was slowly covered with more sweat as he kept succeeding.

Although the process was not as dangerous as a fight against an opponent, the mental exhaustion was more significant.

This was a power that belonged to space, after all, thus Ou Yangming could sense that every new combination was mightier than the one before.

In a way, if there was a mistake during the process, an explosion would have bombed Ou Yangming such that his bones would not even remain.

Even so, it did not stop him from refining the interspatial bag.

As time passed, the ninth rune combination entered the leather bag, and everything went back to normal after the purple Military Fire entered and burned everything once. The leather bag was already filled with many different interspatial structures, but there were no signs of them falling apart when they were combined.

Despite that, Ou Yangming knew they were rather dangerous interspatial structures, and the consequence would be unbearable if they were heavily impacted.

Having said that, the situation would be entirely different if the tenth combination was fused too.

Subsequently, the tenth rune combination was also formed when Ou Yangming moved his hands around, and it slowly shifted toward the leather bag.

At this instant, Ou Yangming sensed that the line of sight on him seemed to have flickered for a second. However, it calmed down so quickly that he did not even have time to deal with it.

The young fellow's heart was bright as snow. His actions alerted the elder, who was incredibly knowledgeable because he recognized the most difficult part of refining an interspatial bag, and was moved as a result.

Sure enough, the imperial family had an unpredictable foundation.

That said, the unforeseen event did not affect Ou Yangming. He employed his purple Military Fire to deal with the toughest stage with ease and completed the big structure.

The interspatial space had been refined successfully, and he could activate a private space by withdrawing his mental power to activate the bag.

Right before he continued, he was struck with another question.

According to what was recorded in the crystal ball, the refinement of an interspatial bag was difficult and was out of a person of his level's league.

Ou Yangming would have a low success rate if he did everything himself. Even if the young fellow had a profound understanding of space, he would have a low chance of succeeding if he carried out the process himself.

If he completed it in a significantly short period…

Going beyond the limit was just as bad as falling short!

Ou Yangming continued to sit with his legs crossed after he figured it out, and he was not going to get up anytime soon. The finished interspatial bag kept spiraling in his hands, and from every perspective, it looked like it still had to endure a long process.

Beads of sweat kept dripping from Ou Yangming's forehead and landed in front of him like raindrops. The young fellow appeared to be trying his best but could not control the turning leather bag in his hands.

Soon enough, Ou Yangming could sense the person looking at him more seriously than before.

He even had a feeling that the person would not stand by idly if an accident took place, and the person seemed to be getting more impatient as time went by.

Ou Yangming understood what that person was thinking because he was playing with interspatial power, and the consequence would be unimaginable if he lost control of the power. If the young fellow was in that person's shoes, he would have done the same too.

'Please know when to stop!

'If you make a move, my efforts will be in vain.'

Ou Yangming exhaled deeply and slowly stabilized his surging aura, causing the leather bag in his hands to slow down too.

It was a representation of an improvement in the situation, by which there was no longer the risk of an explosion even if he failed to refine the leather bag.

At last, the leather bag stopped spinning. Ou Yangming wiped his sweat and cursed to himself.

This was because the young fellow sensed a vague killing intent right before he stopped, and it almost frightened him out of his wits even though it was not intense.

The killing intent came from the invincible great ancestor, and Ou Yangming was fortunate that the elder did not unleash it or he could not have remained calm.

Ou Yangming composed himself and channeled a hint of his mental conception into the interspatial bag. He was greeted with a bright view as if he arrived at a mysterious space, which was roughly 3.6 meters in height and width.

The space was empty, but Ou Yangming had a feeling that he could control it with his mental power.

He opened his eyes and retrieved some miscellaneous items after some thought.

By controlling the leather bag with his mind, it was opened with a gentle pull, then it swallowed the items at once.

Ou Yangming's face could not help but twitch because the bag opened quite widely, and he could sense that it was not the widest limit. The young fellow even had a hunch that the leather bag could swallow any item outside as long as it was not larger than the bag's space.

'So this is an interspatial bag—it's very convenient indeed.'

Ou Yangming kept putting different items into the bag as though he acquired something fun.

This was his second time seeing an interspatial bag, but his first time refining one. He was so overjoyed that his emotions could not be put into words.

Moreover, Ou Yangming was certain that his interspatial bag had a larger space than Wu Hanning's.

Just as he was having fun, his heart tensed up, and he immediately turned to look.

The elder had appeared several meters behind him without a sound.

Ou Yangming was taken aback. He was elated earlier, but his mental power was still around him, hence he could not have missed anything.

Even so, the elder appeared soundlessly like a ghost, which caught him off guard.

He took a deep breath and greeted with a smile, "Greetings, senior."

The elder looked plainly at him and remarked, "I truly underestimated you."

Ou Yangming was dumbfounded because the old man was quite straightforward.

"Senior, I'm honestly nothing much as compared to you," he responded sincerely.

"Can I take a look at that leather bag?" The elder shook his head and asked.

Ou Yangming had intended to do so, so he presented the leather bag to the elder without any hesitation. "Please give me some pointers, senior."

The elder accepted the leather bag and sighed after he checked it briefly. "It's an interspatial bag indeed. Is this… The one that you refined just now?"

"Yes," Ou Yangming answered in a deep voice and added, "This is the first interspatial bag that I refined, and I'm willing to offer it to you to repay you for your guidance."