The Worldstone had already been corrupted.
Standing before the gates of High Heaven, Tyrael stared at the scene before him with a deep frown.
Things had developed far beyond Tyrael's expectations. He had originally thought the Prime Evils would make the first move, but he had never expected Azmodan to get there ahead of them and corrupt the Worldstone. If this continued, the mortals of the lower realm would all mutate under the influence of the Soul Stone, enter Hell, and become the claws and fangs of the Devils.
So it really was too much of a burden for mortals after all?
Tyrael had, of course, seen Duanmu Huai break through the army of demons and charge into Worldstone Fortress. But after that, there had been no further movement from him. Tyrael had no idea whether the human had encountered some danger inside. Although Tyrael knew that the man possessed tremendously powerful strength, perhaps even no weaker than an angel's, he was ultimately still only one person.
And Mount Arreat was so high, with countless demon armies within it... Huh?
Just then, Tyrael seemed to see something unbelievable. His eyes widened in shock.
What was that...!?
"Uwaaaah—!!"
Azmodan's enormous body crashed heavily to the ground. It was no longer as fierce and confident as before. Instead, its entire body had shriveled, and its originally plump frame had become horribly gaunt. Beside it, the demons that had once followed Azmodan's command had all become lifeless corpses, sprawled across the ground.
"You... you damned bastard...!!"
Azmodan angrily raised its head and glared ahead. Floating before it was a figure wrapped from head to toe in a black robe. Behind the figure, wings as thin as mist unfurled, revealing its identity.
It was an angel.
Azmodan had no idea how it had appeared.