A bitter look on her face, Aquababe replied in a low voice, "According to the present gathering of those demonic beasts, the number should be over 1,000. We haven't yet found any particular kind of demonic beasts among them, but some are very strong. It should be over D-rank according to our standard measure of demonic beasts."

Duanmu Lin gasped and said in surprise, "Our blockade line will fall if this tide of the demonic beasts has so many D-ranks. They can easily crush it."

The classification for demonic beasts formulated by Duanmu Lin and numerous cultivators through the battles from low to high ranks were the comparison between demonic beasts with cultivators:

F-rank: ordinary demonic beast;

E-rank: demonic beast comparable to a Qi Refining Stage cultivator;

D-rank: demonic beast comparable to a Foundation Establishment Stage cultivator;

C-rank: demonic beast comparable to a Golden Core Stage cultivator;

B-rank: demonic beast comparable to a Nascent Soul Stage cultivator;