Standing in front of the willow, cheese can''t be absolutely sure that he is right. After all, the clues he can find as a basis are too subtle, and even there are intuitive elements in it.


    It''s like everyone can actually give a more convincing process when guessing and reasoning about the development of a thing. But that is just a guess. Guess must rely on evidence to become inference, and inference depends on the chain of evidence and the prediction of the next development to become a reasonable discussion.


    As a mage, the first step for cheese is to rely more on discussion rather than conjecture.


    But magic is magic after all. Even if mages master it, apply it, invent and transform it, some things cannot be explained by language and logic.


    After all, language is only a tool, and logic and the so-called reason and rationality are not a set of thinking tools that are fictitious for people to understand the world more conveniently. Besides, who can say that his reason is really objective? Intuition is still something you can''t give up.


    Feet, step on the grass. Hand, touch the cold willow leaves. Cheese was silent for a second. He didn''t know what would happen if he made a wrong judgment. Maybe the willow would suddenly become a plant puppet to attack him. Maybe he would miss the opportunity to enter, so that he couldn''t investigate. Maybe he would trigger some counterattack magic.


    But it was only a second''s hesitation. The next second, the grey robe still chose to lift the wickers.


    The wind, coming from behind, like a pair of invisible hands, pushes the cheese into the branches. This thrust is not strong. If a person stands on his feet, he can definitely fight, but cheese doesn''t do that. He relaxes his body and allows the wind to send himself into the shadow.


    His fingers have made gestures in the cuff of his robe. If the situation is wrong, he can cast defensive spells at the first time.


    "Shalala!"


    The sound of willow twigs and willow leaves rubbing and colliding was like waves passing by his ears. The darkness faded in front of the cheese, and the scene raised his eyebrows slightly. The imaginary trunk did not appear. On the contrary, he came to a cave, which seemed to be quite large. Cheese shrugged his nose. The air was filled with the smell of soil, but it was not wet. Combined with the soil on the mountain, it was obviously treated to remove moisture.


    The grey robe put his palm on the wall. The black snake and lizard climbed to the wall along his arm and disappeared into the darkness. They are his eyes and ears, as well as a backup plan in case.


    If the owner here is brave enough to make artificial demons, it is necessary for him to prevent them. However, there is no obvious magic smell in this cave, which is not normal.


    Cheese didn''t turn on the lantern. He covered his eyes with a thin magic vision to fight the darkness. But he soon found that he seemed to be thinking too much. The space in front expanded to both sides, and fresh air blew from the vents.


    The grey robe saw the lampstand beside him and lit it. The flame spread all the way along the metal track filled with lamp oil, lighting up many lamps in the whole room.


    Generally speaking, this is a research room. The layout and objects inside are not different from those he saw in the goblin Research Institute. The only difference is that most of the objects in the latter are related to goblins, but not here.


    The imaginary device for making demons did not appear, but it was normal. No one would put such important technical tools directly in the open, even if it was already a secret room.


    Cheese took out a cloth bag from his arms and grabbed a handful of fine sand from inside. The sand was faintly glowing with dark blue in the dark. This kind of sand can be used to detect magic array or magic mechanism, but it must be in a dark room. The natural light and blowing wind in the open may make it ineffective.


    The grey robe waved the sand upward, and the sand scattered to all parts of the room. It flickered and went out.


    No magic? He frowned. It was too clean here. As a mage''s studio, more or less magic arrays or mechanisms will be set up to facilitate research. Not to mention others, even his studio at the top of the cheese tower will have some storage magic or alarm magic. But there is nothing here, but judging from the scattered documents and open ink, it is by no means unused.


    "It''s clean here," the lizard said to the cheese, climbing from the roof to the wall.


    As a demon with rich experience in dealing with casters, Wei Dao quickly came to the same judgment as cheese.


    The so-called mages are people who release spells as naturally as walking with their feet. The places where they live will naturally be filled with magic. Even in areas with poor magic, the existence of mages will trigger a wave.


    "There are two possibilities. Either the user here is not a Mage at all. Or he or they cleaned up their magic traces before leaving. Did you find hair or something here?"


    When cheese talks, I look back at the way it came. If this is a trap, now is the best time to start. But there is still nothing. As the cheese said, it seems to have been cleaned up here.


    "No, no hair, no dandruff, no blood. Interestingly, I didn''t even find a toilet here. Don''t they need to excrete when they work here?" said the demon lizard with its head tilted.


    "The most likely situation is that they took the initiative to clean up the scene after sending artificial demons to prevent people from coming. People like us. But this kind of cleaning must not be complete, otherwise the Demon Lord will not be able to guide us here. What we ignore can be a clue."


    In the face of a possible trip in vain, cheese tried to stabilize his mind and try to make a judgment.


    "There''s something, come and have a look." boffith''s voice came from the back of the cabinet in the research room. The black snake climbed out of the gap behind the cabinet with something in its mouth. That''s a fragment of a mirror.


    "That''s it. They must have accidentally splashed it there when they smashed the mirror." cheese took the nail sized slag. Because there was some dust on one side of the mirror, it didn''t reflect light.


    But broken slag is broken slag. Its breaking means that it once belonged to a complete whole. In other words, this crumb is the mirror it once belonged to. By casting a spell on this crumb, cheese can track back where the rest of the mirror went.


    And since it is so clean on the magical level, he doesn''t have to worry about whether casting a spell here will trigger a trap. A shallow dish, a little water, put the fragments of the mirror into it, mixed with spells and magic. The fragments sinking at the bottom slowly float to the surface of the water, and then drift in a certain direction.


    "This way," said the cheese, holding the plate and following the direction of the debris shaking around the room, his footsteps stopped because there was no way ahead.


    That''s the vent in this room.


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