An abyssal king appeared among them. Assuming command in the middle appearing no different from a human female. Her entire body was covered in a black leather suit while two pieces of black wings on her back were spread open. She was extremely beautiful with her long black hair spread out like a disc behind the back of her head. Her eyes were filled with piercing coldness.

It was as if her pair of icy cold eyes could see through the entire world. She stretched out her right hand and pointed to the exit. Like a bee swarm, thousands of abyssal creatures surged out at once.

"That's the Black Monarch!" Zhang Huanyun's expression immediately changed when he recognized this creature.

With their experience of dealing with the abyssal plane for over six thousand years, the Blood God Army had an extremely abundant supply of information regarding abyssal creatures.

Even though the abyssal kings could only strike through space during every abyssal tide and could not take part with their real bodies, their projections would still appear on many occasions.

Observing their projections mankind assigned names to these abyssal kings. At least more than half of the kings from one hundred and eight layers of the abyss had been seen by mankind.

On the other hand, the Black Monarch before Zhang Huanyun's eyes was ranked in the top ten among abyssal kings and had also appeared the most before. She was positioned in the ninth layer of the abyss and was the ninth-ranked abyssal king. Only the kings from the first ten layers of the abyss were qualified to be addressed as 'monarch'. Her position was aloof to others in the abyssal plain.

Black Monarch was the leader of the Black Empress clan. She possessed the terrifying force of a demigod-rank creature which was enough to rival a human Limit Douluo clad in four-word battle armor. Despite just being a projection the power of her abilities once brought loads of troubles for the human world.

The abyssal plane utilized the fissures from before to open up the seal's crack at all costs this time. Surprisingly the first king that appeared this time was the Black Monarch and with her real body at that. This showed that the abyssal plane was very determined in doing so.

Black Monarch seemed to have heard Zhang Huanyun's words. She raised her head and looked towards him. They gazed into each other's eyes and Zhang Huanyun only felt as if his eyes were being pierced by needles.

Even though he was also at the Limit Douluo rank he had just entered it recently. His cultivation base was still a tad inferior to beings of the same rank, like the Heartless Douluo and Black Monarch.

The abyssal plane had even transmitted Black Monarch's real body. If the other Monarch-rank abyssal kings were transmitted to this side, they would truly be rendered incapable of resisting.

Fortunately, the abyssal energy that was supporting the cracks in the seal had weakened after the large batch of abyssal creatures was transmitted here. The crack was closing up much faster under the Blood Gods Great Array's suppression. It was apparent that within a short period of time the abyss would not be able to transfer any more powerhouses to this side.

The five Abyssal Monarchs did not attack at once but they kept floating in the air with Black Monarch as the center as they gazed up to the exit.

Countless abyssal creatures wildly launched their attacks to the outside akin to an oil blowout. At once, the line of defense was in a critical situation. Fortunately, the passage's seal was stabilized temporarily with the joint efforts of the Blood God Battalion's nine great Blood Gods. Otherwise, a large number of abyssal kings charging out would result in even more terrifying catastrophe.

Artillery fire immediately blasted in an even more densely-arranged manner turning the inside of the entire abyssal passage into a sea of energy storm.

The deceased abyssal creatures turned into thick abyssal energy that lashed towards the seal so that the following abyssal creatures could continue to wildly attack.

There was no doubt that mankind's soul technology had always been improving for the past six thousand years. Just six thousand years ago, mankind only had rank-9 fixed soul ammunitions while the highest version available now was already rank-20 fixed soul ammunition that could even destroy a powerful building like Shrek Academy.

After six thousand years ago, mankind's technological advancement was already much more powerful than back in the beginning.

Even though the Blood God Army was not included in the federation's military order, no matter how tormented they were the federation dared not reduce its support for it even by a little. The abyssal creatures invasion to the continent six thousand years ago was listed as the federation's top secret agenda. On the other hand, the mission to safeguard Blood God Army's fighting ability was also listed as the highest priority of the federation.

As a result, for the past six thousand years, everything in the Blood God Army was all the federation's newest technology. Including defensive position, all sorts of weapons and even some of the experimental stage weapons were supplied to this place before being adjusted and modified through continuous battles with the abyssal creatures in the branched passages.

Mankind's military hardware at present allowed mankind to confront these abyssal kings without fear. All this time, the most troubling part of the abyssal passage was its ability to remain undead. This was also the reason why Blood One was so overjoyed upon witnessing that Tang Wulin's Golden Dragon Spear was truly capable of devouring abyssal energy.

Of course, the major premise of being able to resist was to ensure that the abyssal plane would never invade the human world. Otherwise, the internal strife of one plane would certainly bring forth a destructive catastrophe to all mankind. When mankind was dead, there was no way for them to be resurrected like the abyssal creatures!

Hence, the federation would need to guard the abyssal passage where the Blood God Army was positioned at regardless of other matters.

Bright Mirror Douluo Zhang Huanyun had an expression as calm as water. Despite his experience of over sixty years, he could not help but feel his chest tighten in dealing with these abyssal creatures.

He genuinely had a rich experience in fighting against abyssal creatures but on the premise that there was a certain limit to the situation. It had already been countless years since the abyssal kings had truly appeared in the human world like today. As the regimental commander, he could not take the risk of slipping into the abyssal plane to experience the abilities of the abyssal kings. Heartless Douluo as the army's Blood One had more experience in this area than him.

The fall of Six-clawed Demon Emperor and Ant Emperor in succession had given them exceedingly huge confidence, but the five Great Kings that had arrived in quick succession could not be blocked by the military hardware they had at present. They could only block them by unleashing destruction weapons that were even more powerful. Yet, the issue was that he could not tell the extent of the Black Monarch's abilities. Black Monarch's identity as ninth in the rank of abyssal kings and leader of Black Empress clan was enough to cast fear in Blood God Army.

It was already considered a tremendous event when only one Black Empress was to appear in the branched passages, let alone the personal presence of the Black Monarch.

The Black Empress clan was a minority clan in all layers of the abyssal plane, but its individual fighting capacity was extremely powerful such that it could even be ranked among the top five in average fighting capacity of the entire abyss.

When Zhang Huanyun was still young he had once engaged in a fight with a Black Empress and he could still clearly remember how he was caught in a tight corner. The Black Empress was already very incisive, thus he could only imagine how powerful the Black Monarch's abilities were.

Booming sounds rose one after another while the artillery fire was being fired even quicker now. The Blood God Army's soldiers displayed exceedingly high quality in the face of such aggressive assault and were completely calm. They alternated all sorts of weapon's energy tank according to many years of drills and had already engaged some reserved weapons in the battle as well.

"Prepare to engage corrosive bomb." Zhang Huanyun's expression was still as calm as water as he despatched order upon order.

A massive cylindrical soul device over thirty meters in diameter slowly arose from the ground near the passage's exit. The cylinder was painted dark green in color adorned with a black skull pattern. One could sense its terror just by looking with one's eyes.

The cylinder aimed at the direction of the abyssal passage diagonally with energy fluctuation radiating indistinctly from the inside.

At present, after being wildly charged by the countless abyssal creatures the blockade line was already getting nearer to the passage's exit.

"Launch the corrosive bomb!" ordered Zhang Huanyun. A ball of dark green radiance emitted from the inside of the green cylinder. Soon after, a dark green light sphere was launched and projecting a beautiful parabolic curve in the sky. It headed straight for the center of the abyssal passage's exit.

The blockade line at the abyssal passage's exit paused for a brief moment while as the abyssal creatures immediately seized the opportunity and ferociously charged from below. However, the massive dark green light sphere of almost thirty meters in diameter had already been dropped into the abyssal passage.