C446 Nine heavens spirit refinement technique

The entire afternoon, Zhu Xingxing and the other three were busy.

In the evening, when Elder Chen came back, all the books outside had already been covered with plastic sheets!

This way, the dew and the rain would not cause any harm to the books, so there was no need to hurry back to the library.

"Uncle, the weather is very good tonight. There's still the wind, so after a meal and a shift