"Did you release her?" As Gabriel returned to the Royal City, Alion inquired, as if he had a rough idea where Gabriel had gone previously.

Gabriel nodded in response, landing on the roof of his palace, from where he had a clear view of the entire city.

"Are you sure you can trust her?" Alion asked. "Even though she's much weaker than you, she can still be very dangerous. And she hates you as well. Isn't it like taking a poisonous snake with you? Moreover, what if she just doesn't come to help you?"

"She will come." Gabriel responded. Even though he couldn't see through the future, he had a rough understanding of the Goddess of Nature since he had known her for such a long time.

He was sure that at the moment, the Goddess of Nature was somewhere, trying to find out what happened in the last thousand years. In fact, that was also the reason he party left out some clues for her to investigate. He wanted her to know everything, but not from his mouth.

"You're right about her being dangerous, but that was only until I returned her brother. I'm sure you also know what kind of person she is..."

"I think she must be feeling quite satisfied that you didn't have a happy life while she was trapped." Alion couldn't help but smile wryly, stopping next to Gabriel.

"Happy and angry." Gabriel clarified. "She must be thinking that I was manipulated into a war with her. Even though it isn't true, but as long as I can play this right, it should be easier to convince her."

"Looks like you've already calculated everything." Alion was slightly surprised. Even though he thought that Gabriel just freed someone dangerous, but to see that he had a plan was slightly calming.

"When are you leaving then?" he asked. He knew that with this world becoming a Domain, even the Warriors of Upper Realm wouldn't have tried to enter this place easily, unlike last time. However, it was different when the battlefield was the Upper Realm.

Once Gabriel went to the Upper Realm, he was once again back to his origin, not possessing the support of his Domain.

"I'm sure that almost everyone there knows that you're alive. If you go there and they find out, it could get quite dangerous."

Gabriel rubbed the back of his neck, slightly frowning. He understood it as well. Unfortunately, there was no choice. It wasn't as if he was going to become stronger the more he delayed.

To get stronger, he had to go to the Upper Realm... The land of mysteries. However, before that, he had to do something else in this world.

After wrapping up his conversation, he entered his Palace and went to the lowest floor, where no one other than him was allowed to enter. It was a space that spread underground, having an area as vast as the City above ground.

There were many restrictions on entering that place... So dangerous that they could kill almost any intruder!

In this huge empty space, there was only one thing. It was a giant skeleton that was lifelessly lying on the floor. However, despite the fact that the skeleton had died thousands of years ago, it was still emitting a power that was overbearing.

Even though Gabriel had killed another True God just recently, but feeling the Skeleton's aura, he had a feeling that the person he faced wasn't even close to the level of this person! The difference was like earth and sky!

Throughout the last week, Gabriel had been trying to study the symbols on the bones of the Skeleton but the more he tried to understand, the more complicated these symbols appeared.

It was as if the more he explored, the more mysteries he found.

The strange symbols contained a power that he had never seen before. It wasn't a power of any of the elements that he had seen before, but it was comparable if not stronger.

Gabriel touched one of the symbols, standing before the rib cage of the skeleton.

"Just what is the mystery that you're hiding?"

If possible, he wanted to awaken the skeleton as his undead knight, to understand this mysterious power even more. However, whenever he tried to cast any resurrecting spell, it was canceled out by those symbols.

The mystery behind those symbols was an opportunity for him. However, it was also a headache.

Even after spending a week on it, he felt as if he was back at the starting point.

"Whoever this was, definitely didn't come from the Upper Realm." In the end, Gabriel shook his head lightly, sending the skeleton back to his storage.

Since he had to leave, he wasn't going to leave the Skeleton behind. Moreover, he had a feeling that he needed to be stronger to explore these mysteries.

After he kept the skeleton back, he left the Royal Palace again. Since that moment, he wasn't seen for one month straight.

Even though he wasn't in the Royal City of Arecia for one month straight, but still there were some sightings of him all around the world! It was as if he was searching for something.

There were many mysteries towers in the worlds on unknown existences. Even though many of the continents were destroyed in the last year war, but the towers still somehow remained intact!

As if trying to find something, Gabriel went to the place where each of the towers was situated. He entered all these towers, one after another to reach the top floor.

Moreover, from each of the top floors, he received one ordinary silver key.

After a month, he finally finished exploring all the towers on earth, receiving eight keys in total.

Most people didn't know what these keys were for. In fact, even Gabriel didn't know. However, he did have a wild guess. It didn't matter if his guess was right or wrong, but he didn't want to miss out on the chance if it was true.