This was the sound of two weapons colliding. In other words, this thing was not a monster—it was a person.
This was the underground world of the Night Elves. If a person appeared here, their intentions were obvious. They definitely were not one of them. Their own people would not turn invisible, yet this thing had remained invisible the entire time.
"Who is it?" Xing En shouted, but received no response.
"Uncle Madara, it's time. Give them a carpet bombing!" Xing En said to Uchiha Madara.
"Can you handle it? My Fire Style is the strongest Fire Style in this world. Be careful not to get burned to a crisp," Uchiha Madara said to Xing En.
"Don't worry, I'll watch myself. If we don't bombard the area now, this person won't show themselves," Xing En said.
"Fire Style! Phoenix Sage Fire Technique!" Uchiha Madara rapidly formed hand seals. In an instant, countless fireballs appeared in the sky. The entire sky above this area was illuminated by fireballs. The innumerable monster corpses on the ground, lit by the blazing flames, made the place look like a slaughterhouse.
The fireballs began falling indiscriminately. Xing En looked at the fireballs overhead and hurriedly dodged. Countless fireballs fell like a rain of fire from the sky, whistling down as Xing En continuously evaded them within the affected area.
Step by step, Xing En carefully sensed every flame falling from the sky while enduring the heat radiating from them.
In Xing En's senses, these magical flames truly differed from ordinary fire. They were hotter and contained energy within them.
Uchiha Madara found it rather interesting that Xing En had actually evaded his countless flames.
From what he remembered, Phoenix Sage Fire was usually countered with earthen walls or Water Dragon Bullets. He had not expected