You don't want your secret to be revealed by others, right?

"Key?"

Lin Yue raised an eyebrow slightly, asking, "Are you used to unlock something?"

There must be a lock if there's a key; it's a simple principle.

"Yes," the young woman sighed, "I was created to open a door."

She looked at Lin Yue with a hint of hope in her eyes, "I also hope my existence can serve a purpose, only then do I have a reason to exist. If you can achieve Harmonization, you can activate me."

"Open a door?"

Lin Yue pondered for a moment, then asked curiously, "What kind of door requires a Divine Artifact based on the Ultimate Path as a key?"

"I'm not quite sure," the young woman said, "but it should be a place related to the Primordial Era. My master followed the will of the Primordial to craft three keys."

"Three keys?"

Lin Yue was taken aback, "There are three?"

"I am the Yanfu Key," the young woman said, "There is also the Olden Key and the Other Shore Key."

"Olden, Yanfu, Other Shore..."

Lin Yue silently mulled over the meanings these three names represented.

They sounded like different time periods, or perhaps three place names?

"Can only the Ultimate Path activate you?" Lin Yue asked.

"Not necessarily," the young woman shook her head slightly, "If you grasp part of the Ultimate Path and prove and transcend, then harness the Taichu Divine Power, you can also activate me."

Lin Yue raised an eyebrow slightly.

That meant if there was Taichu Divine Power, the Crown Prince and Second Prince could also activate her.

"Does it have to be the real Taichu Divine Power to activate you?" Lin Yue inquired.

"What do you mean by real Taichu Divine Power?" the young woman asked, puzzled.

"For example, can this kind of divine power work?"

As he spoke, Lin Yue flicked his finger, causing a drop of Taichu Divine Power to emerge from his fingertips and float there.

The young woman examined it and said, "This is Taichu Divine Power, but it's much too weak, only comparable to regular divine power. It could be used to activate me, but the amount needed would be vast, at least ten thousand drops. If it were real Taichu Divine Power, just one drop would suffice."

"Ten thousand drops?" Lin Yue was astonished.

That was too exaggerated.

He had only obtained eighteen drops of this weaker Taichu Divine Power from the Empress, and he used two when he killed the Twelfth Prince.

With this amount of divine power, even if he achieved Harmonization, it was impossible to activate this Yanfu Key.

However...

The Crown Prince had developed pseudo-Taichu Divine Power, which theoretically could supplement Taichu Divine Power and should also activate this Yanfu Key.

But why hadn't the Crown Prince or the Second Prince activated this Yanfu Key?

"Crown Prince or Second Prince, you should know, right?" Lin Yue asked.

"Certainly," the young woman nodded slightly, "These two are terrifyingly strong. Even in the Ancient Times of the Human Clan, they were second only to the Scion of the Primordial."

Lin Yue knew.

The Scion of the Primordial was an unparalleled being proving and transcending with the Ultimate Path, with the potential to assume the Primordial Divine Position.

Both the Crown Prince and the Second Prince had partly grasped the Ultimate Path, naturally only second to the Scion of the Primordial.

"Have these two never used you?" Lin Yue asked, puzzled.

"No."

The young woman shook her head and said, "Moreover, I was originally brought out from the Eternal Night by a powerful member of your Human Clan. He was at the Saint Level of Harmonization, likely suppressing his Heart Tribulation forcefully without transcending heaven and earth. His power was terrifying, surely having grasped part of the Ultimate Path."

"Someone else has grasped part of the Ultimate Path? I've never heard of it..." Lin Yue couldn't help but ask, "Who was that person? Sixth Prince?"

At first, he thought the Artifact Spirit was referring to the Sixth Prince, who was close to proving the path but hadn't transcended heaven and earth.

But the Sixth Prince likely couldn't have grasped part of the Ultimate Path.

"It wasn't the Sixth Prince; I have seen the Sixth Prince."

The young woman said, "I don't know that person. He was a very young man, also a descendant of your Xiahong lineage, but his bloodline was very faint."

She recalled and suddenly said, "Right, I heard a woman beside him call him... Xiahong Feng?"

"Xiahong Feng?"

Lin Yue's expression changed.

This was the name he'd speculated to be his birth father's!

Reportedly a descendant of the Twelfth Prince, he was a terrifyingly gifted martial arts prodigy, rumored to have slain a rebellious Demon Saint at just over twenty years old, almost unimaginable.

All signs pointed to his mother, Lin Jianlu, having given birth to him with Xiahong Feng.

"Is this the woman you mentioned?"

Lin Yue took a deep breath, flipped his hand, and the Essence from heaven and earth gathered to form a vivid image of a woman.

This was how his mother looked in his memory.

His mother passed away when he was eleven, and with his current cultivation, he remembered it all clearly.

"Yes, that's her."

The young woman asked in confusion, "You know her?"

Lin Yue was silent for a moment and said, "She was my mother."

The young woman realized and said, "So Xiahong Feng was your father. When Xiahong Feng gave me to the Second Prince, the child in that woman's womb was you?"

"What exactly happened back then?" Lin Yue couldn't help but ask.

"I don't know," the young woman said, "I only remember being taken out of the Sealing Land by Xiahong Feng. At that time, the woman was with him, and then he sealed me. When the seal was lifted, I had been given to the Second Prince."