Rohan looked at the dome spinning in the middle of the cave. His injuries were all superficial, and with the bandages all over his body, there was only a small amount of blood dripping out.
The instant he had seen these red threads, Rohan had immediately understood what it was. There were exactly the same strands he had seen in his dreams, and the red was exactly the same as the red dots that he had seen appeared a few times.
This place should be the core of the mountain. Earlier, when he had thrown a wind spell, the mana had mysteriously vanished, without an ounce of a remnant. It had simply disappeared after it touched those threads.
It was only a weak spell, as well as the only one he had. He couldn't be sure, but he believed that all the spells, no matter how powerful, would meet the same destiny. If that was indeed the case, then that meant no one could advance through this barrier.