Hundreds of thousands of meters is hundreds of kilometers. This is not an underground tunnel where you can run at full speed. The ground is full of hard soil and rocks, and even harder metal ores. There may be even more terrifying existences. For most people on the mainland of Tyrande, the underground is a mysterious and unknown world. Even those powerful legendary experts do not know much about the situation under the mainland. Not to mention that this mining area is extremely mysterious and shrouded in magical power. No one can predict what is going on underground. After being combined, Mu En can cast the "Earth Travel Technique". This is probably the only way to go down to the depth of hundreds of thousands of meters, but he still faces a big problem. His Earthbending Technique could not last forever, supporting him hundreds of kilometers deep underground. The standard moving distance of the Earth Movement spell is five kilometers, which means that as long as this spell is successfully cast, it can move at least five kilometers underground. Of course, the mage himself, bloodline, and equipment bonuses will all have a certain impact on the final effect. And if you want to continue to advance underground, you must spend a lot of magic power. The same magic power used to cast this magic can only support the underground magic to move forward for about two kilometers. All spells have this problem. If you want to forcibly upgrade the power of a third-level spell to level four or five, the magic power you consume will increase dramatically. Therefore, it is rare to see a mage forcibly upgrade a low-level mage to level 4 or 5. Advanced spells, if Mu En wants to use earth magic to reach the ground, it will consume a lot of magic power. Of course, Muen has obtained the epic equipment "Endless Magic Power". Just a few days ago, Muen had stored a lot of magic power in it, and now it seems that it may be just in use. But the more important issue is that Mu En must be in a combined state with Xiao Bei when casting the "Earth Walking Technique". The duration of the fusion is not only related to Mu En's magic power, but also affected by Mu En's physique, level, mental strength and many other factors. Judging from the last time Mu En used the "earth movement technique" to break through the blockade of the barbarian army, it is very remarkable that he can advance thirty kilometers underground at a time with all his strength. So if Mu En really plans to go underground now. He could only divide this long journey into many segments. But the underground is full of dense rock and soil, and there is no space for Mu En to rest. He will be squeezed and suffocated by the dense rock and soil. It is really an oppressive way to die. The production of air is not a problem, but there must be enough resting space underground, otherwise the terrifying underground pressure in the depths will be unbearable to Mu En, especially since it is said that the soil dug in this place will reappear out of thin air. The faster you recover! Looking for a monster that can drill holes quickly? Thinking of this, Mu En's heart suddenly moved. He vaguely remembered that when he was in the underground world, he had captured a very powerful underground monster. His consciousness sank into the space and with the help of Xiao Ling, he found the monster. The second-level "Dark Spotted Rat", it was because of the commotion caused by this monster attacking the caveman tribe that Mu En discovered La's tribe. Now he and his brother can eat food made of fungus and wheat every day. Although the effect It's not big, but it can gradually change the magical physique of several people every day. This is a good thing that even many masters cannot enjoy. Maybe after a while, all of them can become elite mages. The introduction to the World of Warcraft Illustrated Book says that this kind of monster can drill holes very fast, even in metal. Muen used a slavery contract to control the dark-spotted book rat and then tested it in the plane space. The ability of this kind of monster to dig holes is really terrifying. If it were in the ordinary underground, let alone one wood, it would be ten wood. This dark-spotted rat can also create enough space for them within a minute or two. No wonder there are so many World of Warcraft that can burrow, but the hole-burrowing ability of these Warcraft is not introduced separately, but the hole-burrowing ability of the Dark Spot Beast is a special book in the World of Warcraft Encyclopedia. But this kind of monster is very rare in the surface world. In the underground world, they are rarely caught because of their ability to drill holes. Mu En was lucky to be able to catch this guy. But the soil that is dug out of this magical place will soon be filled up. In order to ensure safety, Mu En gritted his teeth and used the few remaining power essence in the space on this dark spot technique. The size of the second-level dark-spotted rat has not increased much since it was upgraded to the third level, but its ability to drill holes has become more terrifying, nearly four times faster than at the second level. At the time, those scholars had no accurate idea of ??how deep the ground was, but it would take more than twenty days to go there. It would be very inconvenient to use earth magic when coming back, so Mu En tried to find a way to drag Ed down. Vin sent a magical message to Audry, saying that he needed a teleportation scroll. The portal spell is a master-level spell. The teleportation scroll is a very precious thing to ordinary people, but for an epic mage like Audrey, it only requires some relatively precious materials. Audrey has the hope of advancing to the legend.?It's all on Mu En, so why would he be reluctant to part with a teleportation scroll? Two days later, after Audrey took the time to deliver the teleportation scroll, he encouraged Mu En for a few words and left in a hurry. Mu En simply handed over the matter to Nevar and others, then merged with Xiao Bei and escaped underground. Twenty-five kilometers underground, Mu En felt that the combined state was about to be released in a few minutes. He was anxious and fearful that it would be too late, so he released the dark-spotted rat from the space in advance. Only the third-level dark-spotted rat turned into a streak. The gray-black breeze quickly moved its claws around Mu En and sent the soil to its mouth. In just two minutes, an underground space about ten meters long, five meters wide and four meters high was formed. If it was a second-level The speed of the dark-spotted rat is much slower, and it can only carve out a quarter of the space in the same time. Mu En's power essence is still worth the money spent. Mu En observed and found that the dug out space was indeed rapidly shrinking at a speed visible to the naked eye. In about twenty-four hours, the space would be completely covered, and the dark-spotted rat would only need to dig it again every few hours. Ensure enough space. It took a full five minutes after Mu En recruited the dark-spotted rat, before Mu En's combined state was naturally released. This made Mu En secretly regretted that if he had continued to move forward with the earth technique, he would have been able to advance at least five kilometers more. We don¡¯t know how deep it is to reach the ground, and Mu En can only use the earth magic once a day. If it is five kilometers a day, then in twenty days it will be a full 100 kilometers less, and he will have to stay underground for a few more days. Therefore, Mu En decided to accurately record the time of each combination and the time it takes for the dark-spotted rat to carve out a small space for one person from the next day, so as to make full use of every minute of the combination. Muen was a lonely person underground, and he had nothing to do anyway, so he decided to learn the new enchanting formula "Mage's Gift" he got at the birthday party. This enchantment scroll had been in his space for a long time. If he could make it successfully , his staff's bonus to magic will be greatly improved, and will also help him go deeper underground faster. Although he is only an intermediate mage, he has a very high talent in enchanting, as evidenced by the fact that he can now make advanced enchantment scrolls "Magic Source". Of course, every enchantment formula is extremely complicated, and every "enchantment formula" learned It's all a headache, not to mention that the "Mage's Gift" in Mu En's hand is an advanced enchantment formula and an extremely rare double-effect enchantment. At the end of the night, Mu En Naoren'er was burned to the point of excruciating pain. He tried several times but failed. He still couldn't master the enchanted scroll, but he was not in a hurry. This time he was alone underground. It's time to find something to do for yourself, otherwise these boring days will drive you crazy. The next day, he persisted until 29 kilometers, and sure enough, he automatically released the combined state after one minute. That night, he still didn't learn the "Mage's Gift" enchantment formula and wasted a lot of high-end materials. This is really a costly branch of magic. For five consecutive days, Mu En traveled a total of more than 140 kilometers of boring underground travel and learning enchantment scrolls. The monotonous life made him feel bored. Fortunately, during his break on the fifth day, he Finally, the first "Mage's Gift" enchantment scroll was successfully produced. It's a pity that his skills are not very good and his technique is not very proficient. The original high-end double-effect scroll was reduced by one level. The first scroll he made was enchanted to increase spellcasting by 27% on the staff. Speed ??and 28% spell power. However, successfully making the scroll means that he has mastered the core content of this "enchantment formula". The rest can be improved by continuously accumulating experience and proficiency. Anyway, it was okay. After successfully learning the "Mage's Gift", the happy Mu En continued to make this kind of scroll. After all the magic power was consumed, he relied on his abnormal magic recovery speed to restore the magic power, hoping to make a better enchanting scroll, "Endless". The magic power in the "magic" ring is for life-saving purposes, and he will not use it easily unless absolutely necessary. "39% spell casting speed and 44% spell power! Phew!" After more than ten hours of continuous production, Mu En also felt mentally exhausted. The scroll in his hand was the one with the strongest effect on spell power. Although the spell casting speed increased The results are somewhat unsatisfactory, but what Mu En urgently needs now is to increase the effect of spells, which can allow his earth movement to advance further. In the past few days, Mu En analyzed his own situation, and he roughly estimated that if he did not count any spell effect bonus, his Earth Traveling Technique during the period of integration could only travel about 22 kilometers. The primary dragon bloodline can increase the spell effect by 20%, and the combination can increase the spell effect by 10%. The role of the Illusive Real Staff mainly lies in its two special skills, and its effect on spells can be ignored. If you enchant this enchantment scroll on the illusory real staff???, it's nearly 10 kilometers longer, which may save a lot of time. If only I had known to prepare more magic equipment to increase the power of spells, Mu En thought to himself. This is great news for Mu En, who has been bored underground for a long time. This can save a lot of time. (To be continued, please search Piaotian Literature, the novel will be better and updated faster!