Chapter 170: secret

　　 The dim light shines on the floor through the muddy dust-stained glass, and countless dense and lightly flying dust is forced to show its insignificant existence.
　　 It hasn't been cleaned for a long time.
　　 Holding his breath, Langren strolled in the corridor like a silent ghost.
　　 eyes tightly at the third door, on the waterproof bag around his waist, a drop of blood that was accidentally left on the surface coagulated at the bottom of the bag.
"Ok?"
　　 Langren suddenly stopped and looked back at the corner of the ceiling.
　　‘Is it too sensitive? ’
　　 Langren stared for three seconds, nothing happened.
　　 When I wanted to move forward, the third door suddenly opened.
　　 "Hi...how long will it take for such a boring guard..."
　　 The man with a black scar on his face scratched his hair, walked out of the room, took out a pack of cigarettes from his pocket, and walked towards the corridor step by step in the empty corridor.
　　 When he turned the corner, there was a dull sound of cutting, followed by the sound of crashing warm liquid wrapped in soft lump on the floor.
　　 "Goo...chuckle"
　　 An unspeakable vibration of air spouted from the hollow in the throat, and many pink blood bubbles were inflated.
　　 Langren gently crossed the pool of blood without being surprised, walked up a few meters, opened the door, walked into the room where the man came out, and stood by the door to take a look.
　　 "The guard? What is the guard?"
　　The room is a very normal room, except that the bed was moved to the living room, nothing strange.
　　 Langren immediately set out to dig around, but did not find any peculiar items that belonged to the custody.
　　 "Want to come... shouldn't it be an item?"
　　 Langren frowned and opened the map to see: "If you are guarding things, then I am afraid you still have to go to the place before—"
　　 Langren's self-talking stopped abruptly.
　　 I saw a solid geometry made up of coordinate lines on the map shining slightly.
　　 Langren turned the map and found that this thing had actually become independent, and changed its direction without the turning of the map, so he closed the map directly.
　　 This big pattern floats in the air, it looks like a line composition of a 12-point question cut from a math college entrance examination paper, and it may be more complicated.
　　 Langren tentatively touched a trace of mental power.
　　 "Om... Om..."
At the moment 　　 touched, one of the lines in the composition lit up, and it was very conspicuous to the North Star among the stars.
　　 "This...Is this location where I am now?" After comparing the map, Lang Ren reacted.
　　 Suddenly an induction appeared, and Langren followed the induction and lifted the bed in the living room.
　　 is not something placed at the bottom of the bed, but a rune is engraved on the bottom of the bed. At this time, the rune is echoing the light.
　　 Langren’s doubts were solved instantly!
　　 "Formation... is this formation?"
　　'S eyes widened, and Langren could not speak for a moment when he looked at the mathematical solid geometry diagram in front of him.
　　 Affected by the film and television dramas of the previous world, in his inherent impression, the formation has always been a plane geometric figure, but now it is placed in front of him, it is actually three-dimensional! ?
　　 "This...Each cultist guards an array node, the node is a talisman, forming a huge array that encompasses the entire city?"
　　 But what is the function of this formation?
Yuhuaxian and Dove demon combined to quickly kill the B-level abilities who were threatened by the prosecutors, leaving only C-level survivors who had no effect on them. They pretended to fight back and forth. At the same time, Yuhuaxian retreated and left a large number of units. Some people guarded the formation.
　　‘It should be said...Dove Demon and Yuhuaxian are still in the scope of cooperation? ’
　　‘Dove demon procrastinates, what to procrastinate? Until now, we have even dispatched the rescue team... But they still didn't make any big moves, think we are too few? ’
　　 Langren seemed to have thought: They wanted to ambush the support troops of the Order Barracks.
　　 "Then what is the function of this formation?"
Langren glanced at the rune on the bedboard. He was illiterate because of his understanding of formations. If he couldn't guess, he didn't guess. He re-engraved the appearance of the rune in the sea of ​​consciousness, and then backhanded the bed back and tidied it. Good bedding.
　　 "Okay... I only killed people, I didn't find the formation... Now it's time to go."
　　 Langren still doesn't want to be targeted. If he rashly destroys the stability of the formation, he is not sure whether he will be discovered by Yu Huaxian.
　　 After everything was taken care of, Langren held the doorknob with one hand, and Langren's body was instantly stiff like a lightning strike.
"When...?"
　　 Langren clearly remembered that when he came in, the door was not closed.
　　 If it were to say that the door closed on its own, the sound of the doorbolt closing would be impossible to detect with his sharpness.
　　 "Sneak abilities? At least level B, is it from Dove demon?"
　　 The opponent is not in the face, absolutely can't fight on the opponent's field.
　　 Langren retreated like lightning. Go straight to the window of the living room.
　　 Just as he was about to arrive at the window, he suddenly plunged into total darkness.
　　 The entire room is surrounded by a huge shadow from the structure of the space!
　　 Langren can't see his fingers at this moment!
　　 So instinctively manifested the ability, the burning long knife was impressively in his hand, following the memory, he swung it horizontally.
　　 Boom! ! !
　　 Like a dangerous building blasting, half of the building was shattered, and the darkness surrounding the house was torn apart by the flame blade, and Langren instantly escaped from it.
　　 "Shadow?"
　　 Langren quickly fell to the ground, looking at a group of black shadows high in the sky in surprise.
　　 fell lightly from the tenth floor. After the civet fell to the ground and blew a handful of dust, it smashed the ground with one foot, as if an arrow from the string shot far away from the road.
Langren had already recalled what he had noticed before. Now, if he considers it, it is estimated that the alarm has been triggered. However, the other party's trigger trap is too concealed. He has not been able to observe the recognition of the same kind, only instinctively aware of the abnormal situation. I thought I was sensitive.
　　 The huge black shadow that originally wrapped the room seemed to have substance, moved like a stream of liquid water, and escaped into the ubiquitous shadow under the sun.
　　 "Danger!"
　　 Drums are shaking!
　　 Langren hurriedly plunged into the ground with a knife, lifted up a piece of rubble, and stopped his sprint in time with the help of his strength, and the sewer manhole cover close at hand was lifted off, and countless black shadows condensed sharp thorns blossomed into a huge ink flower
　　 Langren's nose is a little itchy at this time, because the distance between a spike and his nose is only one millimeter.
　　 In this brief confrontation, in the eyes of Langren's ninja, countless trajectories of attacks have closed his retreat.
　　 It turned out that at the moment the spike exploded, a circle around Langren was surrounded by black shadows.
　　 Each of the thorns of the ink flower in front of them turned into a sharp and soft tentacles, and one of them turned into an afterimage~EbookFREE.me~锵
　　 Langren took it with a knife, and while resisting the powerful stabbing of the black shadow giant thorn, his eyes looked around.
　　 He did not find the opponent's body.
　　 At this time, around Langren's body, several giant thorns also appeared in the circle of black shadows, and they were beaten down by storm with the huge shot in front of Langren.
　　 Dozens of large buckets of tentacles beat at the same time, Langren only has a long knife, no matter how fast he swings, it is impossible to take them all.
　　 But just so, this is also within the scope of breakthrough.
　　 "Gap, handover, overlap, weakness!"
　　 Langren suddenly saw through all the weak spots of the surrounding dark shadows, bowed his waist, with the long knife closed around his waist, hesitated with one hand, and lightly pressed it on the back of the knife.
　　 Sword out, round dance!
　　In an instant, the sword burst shot, and a perfect circle divided all the tentacles around Langren and the lower part of the connection.
Whirlwind!
　　 嗤嗤嗤
　　 The sound of poking and burning entered Langren's ears, and all the tentacles floating in the air that had lost the source of the black shadow were corroded by the sunlight, and in a blink of an eye there was not a single strand of blue smoke.
　　 "The source..."
　　 Langren was thoughtful, and his body movements were not slow. After breaking the circle, he leaped one step to the side of the high-rise wall more than ten meters away, and then gently stepped up to the top of the building.
　　 The shadow seemed a bit unwilling. After retracting into the sewer, he came to Langren's downstairs from nowhere, and swam up along the shadow of the wall.
　　 "This person is really a C grade?"
　　 Shadow Ghost frowned in secret, and became vigilant.