This is the Dongtian her elder sister left behind; only her sister's power could open it.
The last time she saw her sister, her sister had told her that she knew Gan Tang could never willingly live a lifetime as an ordinary person. So, everything here was left to her—only when she grew strong enough could she open it.
Inside were words meant for her, and things to leave behind for her.
It was because of this that Gan Tang waited patiently for her advancement, waiting for a thousand years just to know what message her sister had left for her.
She could wait no longer. This time, she stole away the Glasses, borrowing this wondrous item to cooperate with her already Flying Zombie strength to open the entrance.
After coming in, she felt somewhat disappointed—aside from the densely packed bamboo slips on the bookshelf, there was nothing else.
She entered the Stone Coffin, lay inside, closed the lid, and shut her eyes, quietly calming her mind.
