Criks of pain rose from the ground, but they weren't from the Antelope Warriors, nor from the militias of Flame Mountain Valley. They were the Gray Dwarves, invisible under their racial ability, who have caused the most damage in previous battles against the Bemons and Giants of Flame Mountain Valley. When the battle line became congested, the invisibility technique of the Gray Dwarves lost its significance, as there was still a cool-down period.
The Dark Elves had a simple method to deal with the Gray Dwarves under Moore's Blood Elves. The Drow could emit a non-lethal "Bone Phosphorous Flame", a phosphorus flame with extreme adhesive power that could stick to the bodies of the Gray Dwarves. Even if the Gray Dwarves became invisible, they could not escape.
Liu Zhenhan only had one Drow Elf at his disposal, and he couldn't make a single Dark Elf reveal all the Gray Dwarves. Thus, he resorted to another method, the simplest one.
