Rod frowned and asked, "What does this mean? Is there something special about the Red Tear Stone?"
The Book of Knowledge spoke solemnly, "The Red Tear Stone is a product of fire, and the only difference from fire is that it is a solidified material. Simply put, when the power of fire is released in another form, it can also dispel abyssal pollution."
Rod's heart skipped a beat, the words of the Book of Knowledge were clear; it was indicating that the aura of the abyss and the Black Fog have some special connection.
Is it possible that the Black Fog truly originated from the abyss?
