It's unclear whether this last sentence refers to her or is an explanation of the Su family.

Before he could finish speaking, he stopped breathing.

The cries of the Su family echoed inside the prison, displeasing the warden, who shouted urging them to hurry up from outside.

"You're going to die sooner or later anyway, so what's there to cry about? Hurry up and leave. If you make a scene, no one can take responsibility."

Su Rongqing clutched the letter tightly, knowing that her time was running out. She wiped away her tears, gave the old princess one last look, and then turned and left in a hurry.

Behind him were the urgent shouts of the Su family.

"Your Highness, you must save us!"

...

Outside the capital city, inside a mysterious cave.

As spiritual energy was poured in, the blood-red ancient formation revealed strange and mysterious talismans.

Gu Yue knelt respectfully within the formation.

He took out a small umbrella, chanted a spell, and then slowly raised it.

The red umbrella slowly opened.

A dark shadow then descended.

It was the shadow that vanished inexplicably on the Jade Terrace.

He remained standing there, motionless, expressionless.

Gu Yue's eyes were filled with barely concealed excitement. He put away the small umbrella and suddenly knelt down on the ground.

"Master, your disciple has finally seen you again."

The shadow remained unresponsive.

Gu Yue's eyes welled up with tears.

"Nineteen years have passed. If it weren't for you bestowing upon me the cultivation technique and saving me from this ordeal, I would have been devoured by the Dark Demon Clan long ago. I have searched for you for many years, only to learn that when the Great Sui Dynasty was destroyed, your soul was captured and controlled by Su Weichuan using a secret technique."

“You are the Grand Preceptor of the Sui Dynasty, the strongest Celestial Master who makes the Dark Demon Clan tremble with fear. How could you become a puppet of the Zhou people and be used by them? But that secret technique is strange, and your disciple really can't find a way to break it. I never expected that Su Weichuan would use the secret technique again to revive the Princess, separating you from his body and severing the connection with you. Otherwise, your disciple would not have been able to take you away.”

"Now, the Princess is beyond saving, and the remnants of the Sui Dynasty have been slaughtered to the last few. Your disciple will avenge you. I implore you, Master, to pass on your mantle to me. Your disciple will surely fulfill your unfinished last wish."

He knelt down again after he finished speaking.

He then stood up and slapped his chest with his palm, which then slowly moved outward as it transformed into a claw.

A piece of bone was extracted little by little.

The spiritual energy within the entire cave was in chaos.