Send me back

Could it be there's a spirit stone vein or mine nearby? 

Or maybe...

The faces of her Master and Senior Sister appeared in her mind.

A portal back to her world? 

Li Chunhua became excited and swam fast. It didn't take long for her to reach the end and saw a wide cave room not submerged. She spun her head and saw the cave wall full of golden spirit stones, each bigger than her fist. 

The qi essence became denser and some of the strands drilled into her pores and slowly entered into her dantian. 

Master, talk! Are you fine? 

"I-I…" Li Chunhua didn't know what to say. Her mind was blank as sheet as she crawled to the shore. 

This was never mentioned in the book but how can spirit stones appear here? 

She can never mistake them because she used those multiples times to buy food and bribed the cooks to make her meal portions bigger.