Ji Tianxing and Yun Yao have already left.

　　 The two didn't know that Li Gan, Qingwan and others spoke highly of them.

　　 At the same time, everyone was worried about them.

　　 About six hours later, Ji Tianxing and Yun Yao flew seventy thousand miles, and finally left the outer area of ​​Huoyan Mountain.

　　 Entering the central area, the two obviously felt that the flames between the sky and the earth were more turbulent, and the temperature had nearly doubled.

　　 In order to maintain the mana shield, their mana consumption speed is also much faster.

　　 But at this moment, Ji Tianxing suddenly stopped flying and landed on a pale golden mountain.

　　 Yunyao followed and asked with concern: "Tian Xing? What's the matter? Do you want to stop and adjust your breath for a while?"

　　 Ji Tianxing shook his head and said with a smile: "That won't be enough... I may soon find what I want."

　　 Yunyao was taken aback, and immediately revealed a touch of surprise, and asked: "You are talking about... the materials for repairing the Excalibur?"

　　 "That's right." Ji Tianxing nodded, pointed at the mountain below his feet, and said: "I just came along this way, and I carefully probed it with my spiritual sense.

　　 Almost every mountain contains a large amount of metal, and some mineral veins are buried in the ground.

　　 Although many mineral veins are rare and can mine valuable ores, I don’t bother to waste time.

　　 I just discovered that there are three mineral veins hidden in the mountain under our feet, one of which is the gold copper mine. "

　　 Yunyao immediately understood what he meant, "Golden Black Copper Mine is rare and rare. Any piece of high-purity ore can sell for a astronomical price of one hundred thousand spiritual stones.

　　 However, the conditions for the formation of the Jinwu Copper Mine are very special and their growth is extremely slow.

　　 Even a vein that has grown for thousands of years may be only a hundred feet long.

　　Only the golden black copper mine that has grown for tens of thousands of years can give birth to a piece of golden black copper! "

　　 Ji Tianxing showed a smile and nodded: "Exactly! I just explored it. The golden black copper mine in this mountain seems to be more than a thousand feet long!"

　　 "Thousands of feet long?" Yun Yao blinked her beautiful eyes, revealing a strong look of expectation, "It must be a vein that has grown for ten thousand years, and there is a certain chance that golden black copper marrow will be born!"

　　 "Let's go in and take a look." Ji Tianxing said as he held out the Heaven Burial Sword with his right hand.

　　 He saw that there was no one around, so he took Yun Yao to fly halfway up the mountain.

　　 Then, he found a mountain wall closest to the mineral vein and pierced a few sword lights with his sword.

　　 "Boom boom boom!"

　　 Four dazzling golden sword lights pierced the pale golden mountain wall severely.

　　 Suddenly, a big hole was pierced into the glass-like mountain wall. The opening was two feet in radius and about twenty feet deep.

　　 The two got into the deep cave, and Ji Tianxing opened the way ahead with his sword.

　　He used his swordsmanship three more times, digging a cave hundreds of feet deep, and then he entered the mountain's belly.

　　 The belly of this mountain is hollow, full of caves of all sizes, all formed naturally.

　　 The Jinwu copper mine that Ji Tianxing was looking for was in a huge cave with a radius of three hundred meters.

　　The ground, ceiling and surrounding rock walls of the cave are dark red with metallic luster.

　　 The air is extremely hot, and the cave is filled with turbulent waves of fire, enough to melt the soul of the soul.

　　 Ji Tianxing and Yun Yao were in the cave, and had to double the mana transmission to maintain the operation of the shield and resist the burning of the spirit fire.

　　 I saw strange rocks in the cave, and the ground was covered with mounds, rock piles and potholes.

　　There are rows of pale golden stone milk hanging upside down on the top of the cave, like a forest of guns.

　　 A vein that is more than three hundred feet long and dark golden in color, lying on the ground like a dragon.

　　 This is exactly the Jinwu copper mine that Ji Tianxing is looking for.

　　 The vein extends from one end of the cave to the other end, just passing through the entire cave.

　　 Neither the origin of the vein nor the end of the vein can be seen. I don't know how long it is.

　　 Most of the veins are buried underground, only a small part is exposed to the ground, but it is also ten feet high.

　　The dark golden veins exude a mysterious and ancient atmosphere, as well as the scorching horrible high temperature.

　　 Ji Tianxing and Yun Yao both stared at the Jinwu Copper Mine, using their spiritual consciousness to investigate carefully.

　　" Judging from the situation of this vein, it should be more than ten thousand years old, and it has been refined by the glazed sky fire.

　　 I just don’t know, is there any golden black bronze marrow in the vein? "

　　 Yunyao thought for a while, and said, "Tianxing, we will find it separately, which saves time. You go north and I go south."

　　 Ji Tianxing nodded and agreed, and from the middle of the cave, he searched north along the veins.

　　 Yunyao turned his back, looking south along the veins.

　　 There was silence in the cave, and the two of them searched intently.

　　 Soon, a quarter of an hour passed.

　　 The two arrived at both ends of the cave respectively, and their way was blocked by the rock wall.

　　 However, neither of them found the golden black bronze marrow.

　　 Ji Tianxing sighed with disappointment, "This vein is thousands of feet long, and more than half of it is buried in the mountain. We can only use the secret method to drill into the mountain to explore it."

　　 Yunyao comforted and said, "Don't be discouraged. This vein has grown for thousands of years and is very rare on the mainland. It is very likely that the golden black bronze marrow was born.

　　 Although it’s a bit troublesome, we have time. Just take it easy. "

　　 Then, the two continued to move separately.

　　 The two used secret methods to drill into the rock formation ~lightnovelpub.net~ along the Jinwu Copper Mine, and fumbled towards the north and south ends.

　　 The body of the mountain has been burned by the glazed sky fire for tens of thousands of years, and it is as strong as the top-grade magic weapon of the soul.

　　 If two people use their divine swords to dig caves along the veins, it will take a lot of time and energy.

　　 However, the two of them used the secret method of escape, and the speed of shuttle through the mountains was very slow, almost like ordinary people walking.

　　 Time passes silently.

　　 Soon, half an hour passed.

　　 Ji Tianxing traveled three hundred feet in the mountain, and had reached the end of the Golden Crow Copper Mine, but he still could not find the Golden Crow Copper Marrow.

　　 So, he turned back and went through the cave to meet Yun Yao.

　　 As soon as he passed through the cave, he received Yun Yao's divine consciousness transmission.

　　 "Tianxing, come and see! I found it!"

　　 Yunyao's tone was quite joyful, with a hint of excitement.

　　 Ji Tianxing was stunned for a moment, hurriedly got into the mountain, and hurried over with all his strength using secret methods.

　　 When he found Yun Yao, he saw Yun Yao in the rock layer, guarding a stone mound with a radius of tens of meters.

　　 Jinwu Copper Mine broke down here, and that huge stone mound was obviously the origin of the vein.

　　 Ji Tianxing follows Yun Yao's guidance and releases his spiritual sense into the stone mound.

　　 I saw, deep in the dark golden stone mound, there was a mass of half-black and half-gold ore.

　　 That piece of ore is the size of a head, with a diamond-shaped surface, exuding a pale black golden light, which is extremely mysterious.

　　The metal and strength contained in it far exceed the entire mound!

　　 There is no doubt that this is the golden black bronze marrow he dreams of!