Li Yao gently shakes his wrist tactical crystal brain, and the picture on the light screen suddenly changes into a three-dimensional structure of his part of the ship.


    With the flow of his ideas, most of the cabins and the pipes and joints between them emerged in the form of translucent light and shadow, and they separated and combined one after another, evolving into a series of cracks for sneaking in.


    According to Tang Xiaoxing''s description, this is a preliminary structure diagram.


    Naturally, it is not enough to rely on such a three-dimensional map.


    But it can at least tell Lee where the oxygen pipeline is.


    Lee yew likes to dive into the Starship most, because no matter how complex the structure of the starship is, as long as it is sailing in the vacuum of the universe, there must be an oxygen production and delivery system, and there must be oxygen pipes extending in all directions to deliver fresh air to every corner of the Starship.


    The larger the scale of a starship and the more people there are in it, the larger the scale and number of oxygen pipes will be. It''s no joke to supply hundreds of millions of people with oxygen consumption in a sealed environment instantly - unless all the people living in the Starship are carrying oxygen cylinders and breathing masks, it''s impossible!


    The firefly has been sailing in the sea of stars for a thousand years. It''s broken from the inside to the outside, and the oxygen pipeline is no exception. There are many damages and omissions. It''s in the process of comprehensive maintenance and renewal, and it''s impossible to completely close it.


    This gives Lee an opportunity to take advantage of.


    "Zizi Zizi!"


    A dark red ring appeared on his finger. There was a flash of light and shadow floating on the surface of the ring. A series of runes seemed to break free from the shackles of the metal surface and float into the air. In the rapid rotation, they formed a dark red power dagger.


    Although it can''t feel any heat from the appearance, the thin blade dagger, especially the serrated flame around the periphery, has a high temperature of thousands of degrees, which is enough to break through the ordinary metal or ceramic tube wall.


    Li Yao carefully cut the wall of the cooling pipe, and soon broke a hole that was not much bigger than his fist, but was enough for him to squeeze through.


    Drill out of this hole, the bottom is dense, dozens of pipes wrapped together, is a jungle of pipes!


    "It''s... Here!"


    According to Tang Xiaoxing''s instructions, Li Yao quickly found the oxygen pipeline.


    However, he did not immediately start cutting, but gently rotate the ring, the flame from the hot crimson into a cold blue.


    The oxygen concentration inside is very high. In case of accidental deflagration, it''s not a joke.


    At the same time, he took out a very elastic magic weapon from the heaven and earth ring, like a safety film, and wrapped himself outside the oxygen pipeline.


    ——There is an automatic pressure test system in the pipeline. If a large amount of high concentration oxygen escapes, it will give an alarm. Within five minutes, maintenance personnel will come to check it. In such a short time, the entrance he is going to cut on the pipe wall is absolutely impossible to hide.


    When everything was ready, Li Yao concentrated and carefully cut the pipe wall.


    And when he got into the oxygen pipe, he did not use the way of burning and re welding the circular tube wall. Instead, he used a special gel to gently stick it back.


    The strength of this gel is not enough and its sealing is not good enough. It supports for ten and a half months at most, but it is enough for Li Yao''s plan.


    If everything goes well, they can save captain Tang Dingyuan within 24 hours at most.


    Li Yao took a deep breath, curled up in the narrow and tortuous oxygen pipeline, and looked at the deep black pipes. Next, he did two things.


    First, he straightened his arm, wrist style tactical crystal brain toward the front, crystal brain front slowly stretched out a round probe.


    This is the magic weapon he used to explore the structure of the pipeline.


    Its principle is very simple. It is neither an ultrasonic feedback system nor a divine exploration. Both of these methods may be discovered by the counter magic weapon that may exist deep in the pipeline.


    In fact, what he is exploring is not the pipe structure, but the area with "extremely high oxygen concentration" ahead.


    In order to improve the efficiency of conveying fresh air, the oxygen concentration in this pipe is several times higher than that in normal air, which is close to the pure oxygen used in medical treatment. Therefore, as long as you can sense where the pure oxygen with such a high concentration flows, you can find out the direction of the whole pipe and its branches.


    A moment later, on the crystal brain light curtain, a large-scale pipeline diagram like a mixture of capillaries and neural networks slowly emerged.


    Li Yao whistled softly. It seems that he is still young!


    He overlapped this direction map with the three-dimensional map deduced by Tang Xiaoxing, corrected many omissions and errors on the three-dimensional map, determined his destination again, and calculated the nearest route from here to the destination.


    But before we start, there''s one more thing.


    Li Yao removed a cylindrical shape from the Qian Kun ring and embedded a dozen magic weapons of folded antenna and palm size.


    This is a single thread magic weapon for the transmission and reception of divine thoughts.


    It can also be understood as a super small "julingta" of a dedicated line.


    It is equivalent to a micro unmanned communication base station. When Lee Yao sneaks into the depth of the firefly, he will leave more magic weapons of the same type, which will be connected together to form a secret communication line. In this way, even in the depth of the firefly, Lee Yao can communicate with long Yangjun, Meng Chixin and others unimpeded, and there is no need to worry about the signal problem of the communication channel.


    After setting up four more invisible runes at the four corners of the periphery of the super mini "julingta", Li Yao released the Xiaolong to explore the way ahead and formally set out for his destination.


    Five minutes later, he met the first "roadblock.".


    There are three pairs of monitoring eyes set at the corner of the oxygen pipeline.


    Insidiously, they are also surrounded by invisible array, in a state of hidden monitoring.


    Had it not been for Xiaolong''s high level of anti stealth detection magic weapon, and if Lee had been guarding against it for a long time, he would have been photographed.


    Now that they are found, it''s easy.


    Xiaolong is Li Yao''s best companion for stealth, murder and arson. In the past hundred years, Li Yao has upgraded it more than once. Even in the ancient holy world, he used the new magic power and technology learned from Nu Wa warship to upgrade it again!


    At the moment, the owl dragon is not what it used to be.


    Now, as a "senior Yuanying", Li Yao''s ability to control Xiaolong is ten times stronger than when he sneaked into "Youfu" in the blood demon world in the past!


    Xiaolong is like a ghost ship that doesn''t exist. It stealthily goes around the back of the monitoring crystal eye, stretching out more than a dozen soft tentacles thinner than hair from the front. The front end of the ship shines with red, orange, yellow, green, and various colors of faint dark light.


    Li Yao licked his lips. In three minutes, he succeeded in freezing the light sensitive array in Jing''s eyes for 30 seconds, and took advantage of the 30 second gap to flash.


    After the installation of the second "mini julingta", he continued to move forward. This time, he moved nearly one kilometer at a time, and then he installed the third "mini julingta", which brought him new trouble.


    In front of the seemingly empty oxygen pipeline, but the atmosphere of extreme danger.


    Lee''s eyeball is covered with a special invisible chip. By adjusting the light wave passing ability of the chip, almost all visible and invisible light can be seen.


    And now he saw through the chip that the narrow passage in front of him was cut into a narrow space by a dense dark red light beam, which was absolutely impossible for human beings to penetrate.


    Forced through, no matter how fast, will cause the dark red beam of instantaneous cut-off, it will give an alarm.


    After pondering for a moment, Li Yao took out dozens of rhombic crystals, large and small, from the heaven and earth ring. They are all crystal clear, clear as water, and have strong trafficability.


    He narrowed his eyes and calculated wildly in the depth of his brain. Dozens of rhombic crystals danced and even "flowed" at his fingertips, which let Li Yao further understand their characteristics and the angle between each section.


    Half a minute later, Li Yao''s hands suddenly solidified, and then his ten fingers turned into ten virtual shadows, moving all the diamond crystals towards the dark red light net!


    "Shua, Shua, Shua!"


    The rhombohedral crystals cut steadily between the dark red beams.


    These diamond crystals were all brought by Li Yao from the ancient holy world. They are of high quality, free of impurities, and extremely transparent. The dark red light beam passed through them without any obstruction.


    However, due to the different angle profiles of rhombic spar, the direction of the dark red beam is subtly changed.


    However, in the new direction, there is also a diamond crystal waiting for it. After several refractions, it returns to the original direction again.


    The whole process took less than 0.01 seconds, causing almost no disturbance. However, several dark red beams changed from "one" shape to "bow" shape, and there was enough space for Li Yao to drill through.


    Li Yao''s eyes were shining, his hands were close to his body, his legs were close to each other, and he was completely suspended in the air with his power, just like the softest eel!


    This is almost the most complicated mechanism that Lee has ever encountered.


    There were hundreds of dark red warning beams in front of him. He had to calculate how to change the angle of the beam again and again to create enough space for himself to pass. It took him 47 minutes to pass here.


    Not enough. After solving this "roadblock", the next mechanism, such as the "gravity sensing system", is a piece of cake.


    After one hour, 46 minutes and 52 seconds of diving into the firefly, Li Yao reached the top of his destination.