The black Supreme Tower hung alone in the sky above, shrill whistles coming from inside of it one after another. There was nothing special about the whistles; they did not sound sharp, hoarse, gentle, or soft; but like the moans let out by a cat, who had been starving for three days and three nights, when its tail was stepped on by someone.
Even so, the whistles had completely pinned Wu Qi and his party down. The Yu Cauldron was hovering above Ying Zheng, sending dark waves across the void; however, the whistles dispersed them all. Had it not been for the six emperors being protected by extraordinary treasures similar to the Yu Cauldron, they would have been killed by the strange whistles.