In The Zombie Shadows Chapter 140

When Jake Qi found Ethan, he and Crouch were walking out of the third store.

As the two walked out of the store, they were still discussing whether they should buy exotic animals or plants next, or go to the auction house to see if there were any rare exotic animals.

"Most of the auction items are considered rare and can only be bought if you can afford the high price. Last time I came to the market, there was a rare mutated snake up for auction. A piece of snake meat costs fifteen crystal cores."

The auction process is still fresh in Ethan's memory.

It was the first time he saw this trading method. In addition to being novel, he was also thinking about whether he could carve out an area in the fishing ground to specifically raise rare mutant fish and sea beasts. When the conditions are ripe, he would also open a market in the sea. , built shops and auction houses.