"Well...... I'll give it a try." Lei Xinyue thought for a while, and used his spiritual sense to control the control center of the flying ship, and slowly, the aircraft became smaller, Lei Xinyue was very surprised to see this, and continued to control the aircraft to make it smaller, and finally, it stopped changing when the aircraft became the size of a fist.

Lei Xinyue excitedly and nervously controlled the flying machine, slowly approaching the cave, the demon beast guarding the entrance of the cave did not perceive the existence of the flying machine, the two people made up their minds, and quietly entered the cave, there are also demon beasts guarding the cave, the cave has been extending downward, the aircraft is close to the top of the cave, slowly moving forward, there are many forks in the cave, but there is always only one road that is heavily guarded, the deeper the cave, the higher the temperature inside, and the stronger the breath of the fire attribute.

When Lei Xinyue and Xia Jianfeng felt that the fire attribute aura in the cave was getting stronger and stronger, they all knew that they had found the right place, this was the place where there were fire crystals.

After flying for an hour or so, the temperature in the cave is getting hotter and hotter, the walls of the cave here are all fiery red rocks, and the guards here are at least fifth-order demon beasts, Lei Xinyue was secretly frightened, accelerated the speed of the aircraft, and flew for another hour, Lei Xinyue stopped the aircraft.

A huge lizard lay in the hole, its huge body almost filling the entire passage, it raised its head vigilantly, scanned the cave for a moment, and then lay down to sleep.

Lei Xinyue couldn't see its level, she only felt that the cave was full of dangerous aura, which made her uneasy.

"How? Is it dangerous? Xia Jianfeng lowered his voice and said seriously.

Lei Xinyue was silent, slowly moving the flying machine, and observing the monitor lizard with a solemn expression, the monitor lizard didn't seem to feel the existence of the flying machine, and lay on the ground without a mission response.

Slowly, the aircraft passed through the top of the monitor lizard, entered the back of the cave, and entered until it entered, the cave still did not have the deepest depth, but the cave wall became wider and wider, and after speeding up and flying for half an hour, I saw two sixth-order lizards, they were digging the cave wall with their front paws, and the rocks splashed down with one claw, and after a while, Lei Xinyue found that the fallen rocks were mixed with shiny red crystals, and the crystals contained rich fire attribute energy. As soon as the monitor lizard's tail swept away, the red crystals were swept deeper into the cave.

Lei Xinyue's heart beat wildly when she saw the fire crystal, but Xia Jianfeng couldn't hold his breath and shouted in a low voice: "Fire crystal? Look, is that a fire crystal? ”

Lei Xinyue's chin rose and said with a smile: "Yes, it's a fire crystal, do you want it?" If you want to come up with a combat plan, you must hit it with one hit, and you must retreat with your whole body. ”

At this time, Xia Jianfeng calmed down and said solemnly: "Then we have to observe more time and find out their activity trajectory." ”

Xia Jianfeng proposed to take a look inside first, to see where those fire crystals were placed, Lei Xinyue was also itchy, and immediately drove the aircraft to the cave, only walked a small way, and saw a cave dedicated to placing fire crystals, the cave was very large, and the fire crystals inside were piled up on a mountain, Lei Xinyue and Xia Jianfeng couldn't help but cheer when they saw it.

"Wowha, so many fire crystals, I'm going to die of excitement." Xia Jianfeng was so excited that he was about to jump up.

"Now Lei Ming and Boss Gao don't have to worry about running out of cultivation resources." Although Lei Xinyue was also excited, she was still able to calm down.

The craft circled around the flint a few times, then flew out of the cavern and continued deeper into the passage next to it.

Xia Jianfeng reluctantly looked at the fire crystal that was gradually moving away, and asked Lei Xinyue, "Hey, where do you want to go?" We've found the fire crystal! ”

Lei Xinyue glanced at Xia Jianfeng and said, "It's not promising, so it's enough to ignite the fire crystal?" I'm going to see if there's any treasure in the depths of this igneous crystal mine. ”

Xia Jianfeng's face was slightly red, and he smiled wryly.

Lei Xinyue glanced at Xia Jianfeng and said strangely, "Aren't you the Earth Spirit Root?" What excite you when you see fire crystal? You don't need it. ”