C671 Landed Ground

The wooden tablet was larger than the palm and had a very heavy feeling to it. The cold feeling became even stronger when placed on the palm.

The Yin Wood was made from wood that had been deposited in the water. The Yin Qi was very heavy, and it was the most suitable for condensing Yin Qi.

Ye Yan looked at the wooden signboard in his hand and flipped through each of them