Upon hearing Aberdeen's offer to buy obsidian at the price of ten Doomsday Coins, Song Jian kept a calm face, but he couldn't help but curse inwardly.
In his radio inquiries about the Blood Spirit Stone information, Song Jian learned that the price of a unit of Blood Spirit Stone was at least seventy to eighty Doomsday Coins and sometimes it could even sell for a hundred Doomsday Coins per unit.
Compared to Blood Spirit Stone, obsidian is even more precious. Though Song Jian didn't know the exact price, he was sure that the price of an obsidian was at least over a hundred Doomsday Coins. After all, the area where obsidian deposits were located was where the level 30 elite BOSS lurked, whereas Blood Spirit Stone can be mined in the area plagued by a level 10 elite BOSS.
