Wu Yu had no good idea for now, and so he could only help build the Ancient Demon Dragon Perpetual Devourer immortal design for now, and bide his time.

He knew that if he would be in great danger if exposed. It might also have a ripple effect, and affect his ability to get any more information.

Most importantly, every single demon king in Underworld Dragon's Den was now diligently working on their own portion. If he were to wander around, it would be very obvious. Not only would it be fruitless, it might even be counterproductive by inviting trouble.

Therefore, in the next two years Wu Yu did not think too much about it. He simply continued to build the Ancient Demon Dragon Perpetual Devourer immortal design. This great void immortal design might be related to Jiu Ying, but there was nothing he could do about it.

At this point, the Ancient Demon Dragon Perpetual Devourer immortal design was already half done. If things continued as they had, the Ancient Demon Dragon Perpetual Devourer immortal design would be completed in another two years. No one knew what would happen at that time.

The entirety of Underworld Dragon's Den was covered in the half-completed Ancient Demon Dragon Perpetual Devourer immortal design. A dark and sinister abyss was starting to come into existence, and dark dragons could be seen swimming in the materializing void. There was a dystopic aura hanging in the air, and the dark dragons would swim by every once in a while.

Wu Yu had a sense of foreboding. Once completed, the immortal design probably spelled a gory end to Jiu Ying.

Compared to the other demon kings, Wu Yu had double the work - both Kunpeng Demon King's and Green Fire Demon King's.Therefore, his progress was the slowest. The other demon kings knew that he would probably be the one kicked out of Underworld Dragon's Den.

This meant that Kunpeng Demon King's life from then on would be wretched. He might even die languishing in the wild.

This made the other demon kings shun him on purpose. While the other demon kings occasionally took breaks and chatted, none of them came to Kunpeng Demon King.

They did discuss him, however, gloating over his imminent fate.

Wu Yu did not mind it per se, but he could not continue like this. As the Ancient Demon Dragon Perpetual Devourer immortal design drew ever close to completion, he grew more and more anxious. If he could not think of something soon, he would soon be in trouble.

However, he did not panic, keeping his cool throughout. He continued to watch and wait. He would not let any opportunity slip by.

In such situations, the more flustered one was, the more likely one would be to make mistakes. Even if there was a chance, one might let it slip. In terms of mental state, Wu Yu was holding out well.

Even the three 7-heavens demon kings were all working hard to complete the Ancient Demon Dragon Perpetual Devourer immortal design. Wu Yu could not find a reason to approach them, nor find the truth about Jiu Ying even if he did.

Therefore, he could only bide his time quietly.

Finally, there was news from Underworld Dragon's Den. Someone had come to visit.

This might be the chance that Wu Yu needed!

Although it was just a demon king visiting, but this might well be the change to the rhythm that Wu Yu needed to create his own chance.

He heard that the visitor was a 7-heavens demon king called Bloodsucking Scourge. Bloodsucking Scourge himself was not worthy of Diabolical Dragon King's attention, but he was the underling of another 8-heavens demon king!

As an 8-heavens demon king himself, Diabolical Dragon King was one of the elite demon kings of the entire Demon Immortal Realm.

And there were also many other equally superb demon kings throughout the Demon Immortal Realm.

One of those demon kings was the 10,000 Eyed Taotie, an 8-heavens demon king just like Diabolical Dragon King. Therefore, Diabolical Dragon King had to take the underling Bloodsucking Scourge seriously. Besides, the visit might well be intended to spy on the happenings of Underworld Dragon's Den.

[T/N: A taotie is one of the Four Evil Creatures, in contrast with the Four Holy Creatures and Four Benevolent Creatures. It is said to have the body of a goat, and a human face, eyes in its armpits, human hands, and tiger fangs.]

There was a lot at stake with Bloodsucking Scourge's visit, and Diabolical Dragon King could not afford to take it lightly.

In order to hide what they were doing at Underworld Dragon's Den, Diabolical Dragon King ordered all the demon kings to pause their work on the Ancient Demon Dragon Perpetual Devourer immortal design. They also hid the entire immortal design, reverting Underworld Dragon's Den to its clear and pristine state again.

This indicated to Wu Yu that Diabolical Dragon King did not want the other rivals to know about him creating this great void immortal design.

"This must be very important to Diabolical Dragon King indeed."

Wu Yu thought to himself. And this time, 10,000 Eyed Taotie's underling Bloodsucking Scourge had come over. He must have sensed something. This was a golden opportunity for Wu Yu. It might be the very change up that he had been waiting for.

Bloodsucking Scourge asked for an audience with Diabolical Dragon King.

Diabolical Dragon King naturally could not go to meet him. The two were not on an equal level. To Diabolical Dragon King, he would meet any visitor at their level. Therefore, he sent Spectral Fire Phoenix to see what business he had.

Spectral Fire Phoenix was also a 7-heavens demon king, on par with Bloodsucking Scourge. It was a fitting reception. At the same time, he could also conceal the happenings in Underworld Dragon's Den.

Bloodsucking Scourge had reached Underworld Dragon's Den, but could not enter. He was met outside by Spectral Fire Phoenix.

Because of the Bloodsucking Scourge's visit, the demon kings in Underworld Dragon's Den had split up for now. They could not expose any sign or trace of the Ancient Demon Dragon Perpetual Devourer immortal design.

Therefore, Wu Yu sent Full Moon of Nanshan out, using his Gone from the Skies Mystique to follow Spectral Fire Phoenix. Very quickly, he saw Bloodsucking Scourge.

Although they were both 7-heavens demon kings, but Bloodsucking Scourge was a stark contrast to Spectral Fire Phoenix. Spectral Fire Phoenix was covered in black flames, and dozens of times larger than Bloodsucking Scourge.

However, Spectral Fire Phoenix did not dare to take Bloodsucking Scourge lightly!

After all, Bloodsucking Scourge worked under 10,000 Eyed Taotie. He was a scarlet mosquito with a small body, but his movements were nimble, and a nightmare for many 6-heavens demon kings.

Because of his small frame, he was hard to keep track of, especially when he concealed himself. Many demon immortals had been caught off-guard, and sucked into bloodless husks. That was the true terror of the Bloodsucking Scourge.

Besides, he had the 10,000 Eyed Taotie backing him.

Seeing Spectral Fire Phoenix come to meet him, Bloodsucking Scourge hovered calmly in mid-air, his scarlet eyes flickering with a mocking humor.

"I have a treasure to present to the Diabolical Dragon King. I beg the great phoenix lead the way. This is a present from King Taotie himself,and must be personally delivered to Diabolical Dragon King's hands!" Bloodsucking Scourge declared.

He spoke of a gift for Diabolical Dragon King, but even Full Moon of Nanshan behind knew that Bloodsucking Scourge intended to use this chance to spy within Underworld Dragon's Den.

They had probably sensed some disturbance in Underworld Dragon's Den, and decided to investigate.

To 10,000 Eyed Taotie, Diabolical Dragon King was at the same level as he was, and their territories were relatively near. Diabolical Dragon King's continuing to grow in strength and power was not a good thing for him. It might even threaten his existence.

Therefore, if there was anything happening at Fiendish Underworld Metropolis, they would definitely send someone to check it out.

Bloodsucking Scourge was on precisely such a mission now. Facing off against Spectral Fire Phoenix, he insisted on seeing Diabolical Dragon King.

Spectral Fire Phoenix gave a cold laugh, emphasized by a flash of black flame. It felt like the black flames could incinerate Bloodsucking Scourge in a flash, but he did not flinch.

"If you want to meet the dragon king, get 10,000 Eyed Taotie to come himself. A puny mosquito like yourself wants to meet the great dragon king? Are you dreaming? If you have a gift, hand it over. I will pass it on to the great dragon king."

Spectral Fire Phoenix laughed derisively. Of course, they would not bend for this person. Besides, he had no intention of giving a gift at all. Why entertain him?

Just stopping him outside Underworld Dragon's Den would be enough.

Hearing Spectral Fire Phoenix's response, Bloodsucking Scourge again said: "Taotie King insisted that it be handed over personally to the dragon king!"

Both sides were locked in a stalemate with no sign of resolution. Spectral Fire Phoenix refused to back down, and Bloodsucking Scourge could not possibly force his way into Underworld Dragon's Den. They faced off for a while.

Seeing that Spectral Fire Phoenix showed no sign of giving in, and considering that this was still Diabolical Dragon King's territory, Bloodsucking Scourge's face turned grim, and he turned to leave.

Although he was unable to enter Underworld Dragon's Den this time, but Spectral Fire Phoenix's reaction was enough for him to guess that something major must be going on within Underworld Dragon's Den. This might very well be something that would help Diabolical Dragon King grow stronger.

Something that 10,000 Eyed Taotie did not hope for.

After Bloodsucking Scourge left, obviously to report back to 10,000 Eyed Taotie, Full Moon of Nanshan continued following him. Bloodsucking Scourge's visit was a chance for Wu Yu that had to be grasped by the horns. Victory or defeat lay in this one event. After this, there might not be another chance.

Therefore, Wu Yu gave Bloodsucking Scourge's visit his full attention.

With Full Moon of Nanshan following Bloodsucking Scourge, he stayed in contact with Wu Yu through immortal message talismans, giving him live updates. He would definitely be able to react faster than Diabolical Dragon King could. In any case, Full Moon of Nanshan's Gone from the Skies was now undetectable to all save those at the eternal demon emperor level. It was very safe for him to follow Bloodsucking Scourge.

After Bloodsucking Scourge left, Spectral Fire Phoenix returned, relaying the exchange to Diabolical Dragon King.

Diabolical Dragon King turned grim after hearing this, and even a little irritated. Clearly, anything out of the ordinary during this critical time would get on his nerves.