Online Game: God-tier Assassin, I Am the Shadow! Chapter 828: The Unique Item of the Universe! The Depressed Demon King!

Because the life-force consumption of this Old Era Covenant was truly too much. Qin Feng had no use for this thing for the time being. He could only turn his attention to the third reward. —— 【God-Given Book: Spacetime Sand (Unique): You can consume life-force to produce Spacetime Sand (this is the only way to produce Spacetime Sand).】 【The base production cost is 2 million years of life-force…