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That's right, Lin Shu is planning to build a magic barrier here, to block the seawater, otherwise it will be much more difficult to dig by himself, although there are not many materials stored on the Wyvern, but it is no problem to use the rocks on the bottom of the sea as a pedestal, and then arrange an enchantment with a simple function.

However, this incident also made Lin Shu discover that it was best to reserve more alchemy materials on the Flying Dragon.

It's the first time Dora has seen someone use water alchemy, in fact, it should be alchemy, but Dora and Mulido have only joined the Xuanmen for a short time, so they don't know that Lu Dao Lin Shu uses water alchemy. Either way, alchemy directly in the water with water-based energy surprised Dora and Marie.

In fact, alchemy with fire and gold energy is no different from water, the key point is to homogenize matter and energy, that is, to turn the structure of matter into a subionic state through high-speed oscillation, and then refine and reconstruct the substance.

Soon, Lin Shu arranged a ring-shaped water magic enchantment on the pedestal of the earth spell construction, the reason why the water magic enchantment instead of the five elements enchantment was because the work here did not know how long it would take, and there might be Grimm Semen people here at any time, and Lin Shu didn't want to easily expose the secrets of his spell system.

Soon the magic enchantment was activated by embedding several high-level magic energy crystals, which were produced by the Wyvern, and in the magic energy conversion center, the Wyvern would store excess energy in these spars.

The trees drain the water from the barrier. Then use the earth spell to dig the hole. The excavated soil is compressed onto the surrounding cave walls. Reinforced the surrounding cave walls, installed lighting crystals on the cave walls, and planted abyssal blue orchids that produce oxygen, posing for a protracted battle.

Dora, on the other hand, is responsible for continuously transporting seawater in to crack and vaporize, adding air to the passages that the trees continue to dig and reducing the pressure difference between the two sides of the barrier.

The trees dig very fast, because the passage itself doesn't need to be too big, just to make Dora turn around. A diameter of about five meters is sufficient, and the trees first sandify the soil and rock layers, and then create a swirl flow from the middle, pressing the sandy soil against the surrounding cave walls, on the one hand, without having to transport the excavated soil, and on the other hand, strengthening the cave walls enough to support the entire tunnel.

The oblique tunnel soon extended downward, and the continuous casting of these low-level spells had no pressure on the forest trees, which was basically a non-consuming work, and the only thing that was more tiring was the spirit, which was quite boring. Luckily, I occasionally see something strange hidden deep in the dirt at the bottom of the sea, which keeps me a little fresh.

Both Dora and Marie love these strange things. For example, the tooth fossil of an unknown magical beast, a fragment that seems to be an artifact, a few earth-based demon cores that are quite old, etc., their master and servant will study it, and Lin Shu found that in fact, Mi Li's curiosity is also quite strong, but her preference is more special.

At a depth of thousands of meters, it is still necessary to excavate at an angle, the length of the tunnel has increased several times, and it took Lin Shu and Dora three days to dig the tunnel to the predetermined depth, at this time, all kinds of strange things that Dora sent back to the Wyvern have been piled up into a small mountain, including some rare alchemy materials, which can be regarded as an unexpected gain from digging the tunnel.

"Boss, this is a magic array, right?"

"Dora's eyes are so good, such an obvious magic array can be seen at a glance, hehe. ”

"Don't bully Dora. "Muli has never had a very good attitude towards Lin Shu, and may still be resentful of Lin Shu's bullying at that time.

Lin Shu smiled and pointed at this guy who was obviously from the access control system and said, "Mi Li, why don't you go to the back of the door and take a look, if there is no danger over there, I will open the door." ”

"Can't you detect what's going on behind the door yourself?"

"Unfortunately, there are powerful isolation arrays around here that are still effective, and there is also a defensive layer of demonic material materials, so I can't detect it. ”

In fact, Lin Shu didn't tell the truth, he could use his true qi and the power of the earth to detect, but because of the interference of the magic array, the detection distance was less than a kilometer, and such a detection distance was obviously insufficient, and the reason why Lin Shu was so careful was because of the inexplicable vigilance in his heart, Lin Shu trusted his intuition very much.

Miri raised her eyebrows, she was a little proud, Lin Shu felt a little funny, compared to Nilaya, Miri's emotionality was too obvious.

"Well, I'll just reluctantly do it. ”

Mi Li floated forward, and was about to pass through the metal access control, when Lin Shu suddenly said: "Don't go too deep, once you find something wrong, withdraw immediately, and take your own safety as the first priority." ”

"Oh, I know. ”

Mi Li didn't look back, and disappeared behind the door as if she answered casually, Lin Shu stepped forward and stretched out her hand to press on the control position of the access control, ready to forcibly open the door at any time.

Dora couldn't help but be a little nervous when she heard Lin Shu say solemnly, after all, Muli is Dora's day, if Muli has any accidents, Dora doesn't know what to do.

The space at the end of the tunnel suddenly fell silent, and the bright illuminating stone emitted a soft light, and the abyssal blue orchid around the illuminating stone shimmered with crystalline light.

As time passed, Dora became a little agitated, her huge body writhing involuntarily, and her eyes gradually revealed more uneasiness.

"Don't worry, it's only been a few minutes. ”

Lin Shu was born comforted, Dora didn't seem to hear it, still writhing uneasily, Lin Shu sighed, Dora is a child.

"Why haven't you come out yet?"

"It's all been said for a few minutes. ”

"Oh. Dora replied casually, still staring at the black metal door, not at all relieved by Lin Shu's words.

Lin Shu shrugged his shoulders and no longer paid attention to Dora, but carefully studied this access control system, which was an independent access control system, if it was networked. For Lin Shu, he can get more information through these magic energy networks. It seems that in ancient times, it was customary to set the access control independently. The same is true for low-Earth orbiters.

From the point of view of the door lock and access control system, its magic principle is the same as the access control on the Wyvern, but the specific design is a little different, it looks more complicated, and there are even some deliberately set decryption traps, it is obvious that the level of the access control system here is much higher, which also shows the importance of this artificial building.

Such a tight access control facility. There would definitely be no defenses inside, which convinced Lin Shu that his instincts were correct, and there must be some danger hidden in this building.

Half an hour had passed, and Dora had lost some of her patience, and Miri had finally returned.

"Miri-sama, you're fine, are you?"

"I'm fine, Dora don't worry. ”

"How's it going? Are you in danger?"

Miri shook her head: "No, there are two separate portals behind this portal, and then there are passages that extend in all directions, and the passages are about twenty meters by fifteen meters. Very wide and too many pathways. It's like a labyrinth, I didn't go deeper, in addition, there are forbidden demon arrays in this passage, and I can hardly feel the magic energy, and the energy in my body escapes too quickly to go deep. ”

"No threat found?"

"Not at all, but I can't guarantee that there aren't hidden mechanisms, I don't know much about them, and I don't have any entities, so I guess I can't trigger them, if any. ”

Lin Shu nodded, turned around and pressed his hand on the controller of the access control system, and easily opened the access control, the air pressure in the door seemed to be greater than that in the outside passage, as soon as the door opened, a somewhat stale air rushed to his face, Lin Shu's side had already stretched out the protective qi, and Dora held her breath.

The whirring wind blew backwards along the tunnel, and the surging air currents stirred in the passage, and the sound was still quite loud, sounding like the roar of a monster.

Lin Shu walked a few steps, entered the curfew, and knocked on the wall somewhere, and the surrounding walls suddenly lit up.

Lin Shu quickly walked to the edge of the second gate, this gate seemed thicker than the first, Lin Shu thought about it, picked up the communicator and told Du Yuheng about the situation here, and then turned around and closed the gate behind him, and now, the contact with the Flying Dragon was interrupted.

Lin Shu tried the connection at the soul level, but fortunately it was still unblocked, but because of the limitation of distance, it could only be connected in the form of encoding.

Lin Shu reopened the first gate, turned his head and looked at Mi Li seriously:

"There may be danger ahead, you exit the door, I will close the portal again, down I will use the soul link to keep in touch with you, and you are responsible for transferring to the Wyvern. ”

"Danger but"

"It is impossible for a place with such a strong defense to be without other means, and the reason why we have to close the door is to prevent the situation from spreading. ”

"But do you want to inform Lin Wei, or call Lord Niraya to come?"

"No, are they better suited to expeditions than I am?"

"All right, but as long as Dora stays here, I'm going to follow you, and I've told me to watch over you. ”

"Take a good look at me?" Lin Shu asked angrily.

"Well, I'm optimistic about you, so I have to follow you. ”

Lin Shu was helpless: "Okay, you are not an entity anyway, but you can only use a clone to come out, and the body cannot come out of the magic weapon." ”

"Know, Dora. ”

Dora opened her mouth a little reluctantly, and used her tongue to send out the beads hidden in her mouth, and Lin Shu reached for it and put it in her inner pocket.

Mi Li's figure shook, from the solid state just now to illusory, Lin Shu turned his head, looked at Dora and smiled: "Don't worry, I won't kidnap your master, honestly guard the door, if you are hungry, let Yu Heng bring you food, and you are not allowed to leave." ”

"I hate it, people are not children, how can they be so greedy, if the master doesn't come out, Dora won't leave a single step. ”

"Very well, just be patient. ”

The door slowly closed, and there was only a black iron door left in front of Dora's eyes, and with a sigh, Dora fell to the ground and coiled up, but her eyes were fixed on the iron door.

"Boss, are you there?"

"It's only a few seconds. ”

"I, I, I'm auditioning. ”

"Hehe, don't try it, I'll contact you if there's something, don't bother me. ”

"Oh"

Dora reluctantly responded, put her chin on her body, and wagged her tail boringly, it's so quiet here. (To be continued......)