Since the two of them didn't know which passage to take, they simply selected a random one. Krune and Iem tried to use Purple Tribulation Lightning and Devil Flame against the beetles. At first, it was really effective. They were able to kill a few of them. However, considering the sheer amount of Azure Beetles, it wasn't enough to even be considered a change. Besides, they could hear the sound that came from far behind the beetles. They were sure that whatever they are seeing now is only the tip of the Iceberg.
That being said, they cast away any idea of using Luvile and Harold's powers to deal with the beetles. Doesn't matter how much they have, it wouldn't be enough to deal with all of them.
"Just what are those beetles? Have you noticed anything about them?"
Krune shook his head.
"I don't even know how they can be this strong. The beetles have no cultivation whatsoever. All I can tell is that they are indeed alive, but that's all."