After the Corpse Wizard King, Blood Angel Ophelia, and others realized that the Demon Hall was sealed, they tried dealing with it together. But, unfortunately, there wasn't any way out of the Demon Hall, either in the sky or in the ground, and they couldn't get out even after using all the skills up their sleeves. The Demon Hall wasn't just able to greatly weaken one's Divine Consciousness; the hardness of the ground and hall had reached an unbelievable extent.
Roar!
The Giant Ape King let out a roar and jumped up. He fiercely swung his rod at the wall and badly wished to destroy it. But, after a "rumble" echoed out, his fingers started shaking and turned numb. He almost fell to the ground, yet the black wall was still intact.