The middle-aged steward took the waist token handed over by Yuan Ming with a complicated expression, then turned around and entered the room again. He soon brought out a rough, gray-brown animal skin-covered booklet.

After Yuan Ming took it, he immediately found a place to read it.

This time, he read it even faster, but because of the rich content, it took him more than an hour to finish reading it all.

In this booklet of the Second Cave Master's medicinal collection, he found the descriptions of the Black Scale Fruit and Yin Marrow Liquid as he wished. The former is a black fruit that grows on some shady cliffs in the Ten Thousand Mountains.