half an hour later, the number of Liao troops passing through Tiger leaping Cliff is now about 60, 000 or 70, 000, and there are more Liao troops preparing to enter outside the canyon.,at the same time, the sound of killing on the north side gradually dropped, and Su Pingbei realized that he had to do it.,stared at the Liao army squirming slowly in the dark, and the clattering footsteps of the marching army. Su Pingbei's heart beat faster, and he slowly raised his hand.。