"Hmm? I guess you know this skeleton. Could you explain how you know about it? Is it really the Undead Region scheming against us?" Ryder asked the Vampire King.

"That skeleton! He..." The Vampire King kept glaring at the skeleton with shock on his face.

"Speak! Who is this skeleton! Why are you so shocked to see him?" Ryder asked the Vampire King.

"It's because... I destroyed that skeleton myself! I crushed him into a powder before burying him!" The Vampire King replied as he frowned.

"Hmm? Did you destroy it? Who is it? Why did you destroy it? If you're so sure that it's the same skeleton, then how is it still alive after being destroyed in your hand," Ryder asked the Vampire King as he frowned.

" That skeleton is the previous Skeleton King!" The Vampire King replied, shocking everyone.

Ryder and everyone else was shocked as they heard this revelation.

The Skeleton King? An undead King? Even though the Leech King and the Vampire King were the two Major Undead Kings, there were other Undead Kings too.

The Leech King and the Vampire King were said to have as much strength as the High Dukes of the Demon Realm, but the other kings weren't weak either. If Ryder were to make an assumption, the Skeleton King could be said to be as strong as a Duke of the Demon Realm. This meant that the Skeleton King was as strong as Devilia.

If Ryder wasn't with High Duke Mila here and Duke Devilia badly fought with the Black Skeleton, she might not have been much of an advantage either.

"So he's a Skeleton King. No wonder he was able to kill Demons without being found out. It's as strong as Devilia, after all. It's a good thing that we arrived and heard about it. I never knew such big trouble was roaming around in our land under all our noses," Ryder muttered as he frowned.

"Tell me more about the Black Skeleton King," Ryder said to the Vampire King. "Since you killed him, it doesn't seem like you liked him much. That might be why he killed your general and framed us while destroying is from inside," Ryder said in full seriousness.

Since the Skeleton King was here, he decided to use that as an excuse for the death of the Vampire General.

"That's indeed possible if it's him. If it's indeed the Black Skeleton King, he'll definitely think about revenge," The Vampire King nodded his head in understanding.

"It would make even more sense that he joined the Death Domain since he lost his position in the Skeleton Clan and with the rise of a new king from the Royal Skeleton Clan," he continued.

"Tell us what had happened," Ryder asked in curiosity.

"Nothing major. The Black Skeleton King was just too arrogant. He started attacking nearby clans and taking their resources. Ultimately, he attacked a clan he shouldn't have," The Vampire King said as he reminisced about the past.

"He attacked the Vampire Clan? Was he really an idiot, or was he way stronger than the current Skeleton King?" Ryder asked in confusion.

There was no way a King that was as strong as a Duke will attack a King that was as strong as a Duke. The only possible explanation was that the Skeleton King was an Idiot, or he was way stronger than the current Skeleton King. Ryder only knew about the current situation where the Skeleton King was as strong as the Duke, but maybe in the past, the Previous Skeleton King used to be as strong as a High Duke?

While Ryder was coming up with an assumption of his own, the Vampire King started replying.

"No, he didn't attack the Vampire Clan. He wasn't an idiot to attack us. Instead, he attacked the Zombie Clan," The Vampire King replied.

"How did you get involved then?" Ryder asked in confusion. Why would the Vampire King attack the Skeleton Clan for Zombie Clan? Their relationship shouldn't be that close.

"It's because of a promise. In the past, the Zombie King had helped someone from my family. I had promised him that I would help him once whenever he needs, no matter how big the problem. When the Zombie Clan was in danger, I came to his help and killed the Black Skeleton King. I helped the peaceful Royal Skeleton Commander rise to the throne, and the war was over. That was the last day I saw the black Skeleton King," The Vampire King explained as he sighed.

"So you destroyed it. It is surprising that it was able to rise against... wait a minute! The Death Domain! Those guys can revive undeads to fight for them!" Ryder exclaimed as he put the pieces together.

"That's true. They can revive Dead Skeletons, but they shouldn't be strong enough to revive and control an Undead King, though. Only the Death Emperor was strong enough, but according to my sources, he was killed by the Demon Emperor in the last great war," The Vampire King replied as he frowned.

"Could it be that the Death Emperor is still alive? Or he revived the Black Skeleton King before dying?" Ryder asked as he frowned

"No, if he was alive and he had revived the Black Skeleton King, he would have definitely used the Black Skeleton King against us in the last great war. He didn't use that against us, so I can't say that he is involved. The Death Emperor is definitely dead," High Duke Mila chimed in as she shook her head.

"How is this possible then? Has another person appeared in the Death Domain that can revive High Ranking Undeads and the Undead Kings?" Ryder asked as he frowned.

"That shouldn't be possible. I don't think there is anyone like that in the Death Domain according to our information," High Duke Mila shook her head.

"There isn't, according to our information as well," The Vampire King chimed in.

"This doesn't make sense then! How is the Black Skeleton King still alive? The only possible explanation that can still make sense is that the Death Emperor revived the Black Skeleton King, but for some reason, he didn't use it on the last great war," Ryder let out as he frowned.

"Alright. That does make sense, but there's a problem in that as well. If the Black Skeleton King has been alive for so long, why is it only getting active now? Why hasn't it done anything before? So many years have passed since the last great war," High Duke Mila asked as she frowned.