Several police cars made their way through the forest and stopped in front of the hotel.

"I've kept you waiting."

"I'm Shizuoka Prefecture police officer Yokozo Sango, someone called the police and said they saw a huge monster, but I'll be fine when I come, don't worry, the police will protect everyone......"

Upstairs in the hotel, Gao Cheng did not go to Henggou with others, but walked around with Xiao Ai.

It can't be said that it is a random turn, because he wants to find the evidence hidden in the hotel.

Since he was busy in the morning, he has never had time to rest, but at this juncture, he can't take care of these things, and his mind is now full of intertwined clues.

The case picked up in vain can't fly away, and now that the prisoner is locked, the rest of the puzzles are easy to say, and it won't be a problem to solve the case first.

He never thinks that he has many cases, and only by solving more cases can he collect the blank camouflage cards as soon as possible, and when the time comes, he can dispose of the black-clothed organization and show up on the world stage.

"Found it." Xiao Ai found a black bear skin in the depths of the locker, which was a specially made prop, just enough to be put on the hotel dog, and a fake snake was installed as a tail.

Along with the bearskin is a miniature warning sign.

Xiao Ai yawned sleepily, looked at Gao Cheng in a muffled voice and asked, "And then?" Can I go to bed? It's so sleepy......"

Gao Cheng was speechless and looked at Xiao Ai and turned to leave.

I obviously slept in the car during the day, but I still looked sleep-deprived.

In other words, it seems that only Xiao Ai can still sleep here.

Forget it, let's solve the case first.

In front of the entrance of the hotel, I thought it was just an ordinary murder case, but after calmly listening to everyone's description, my confident face gradually stiffened, and cold sweat broke out on my face.

In other words, the huge monster that almost reached the window on the second floor took the warning sign more than one meter high, and when it went around to chase it, it found the victim's body in the forest next to it, and the corpse also left claw marks...... Are you sure you didn't get caught by a cat? ”

"This is a picture of a corpse," Hattori said, taking out his mobile phone, "There is about 10 centimeters between each two claw marks, so it can't be a cat, right?" ”

"Saying, saying is also ......"

Henggou swallowed his saliva, and after listening to everyone's story, the reflex arc became horrified for a long time: "It really exists!" In this black gold forest, that monster known as the Ostrix! 16 years later, it actually appeared again! ”

Henggou said that his breath was short.

"Anyway, please gather everyone in one room and stand by, and I'll ask my boss first, I don't know if I can apply for the Self-Defense Forces to be dispatched......

Gao Cheng came out with the golden retriever tied to the restaurant, walked past Henggou, and the black bear skin was directly on himself.

He still plans to do an experiment before the formal reasoning, so he needs to insert the miniature version of the warning sign into its original position, and the golden retriever will bring it out to show a portrait, so as not to scare Xiaolan later.

"Huh?"

Henggou's body froze, slowly twisting his neck, and staring at the bearskin monster walking in front of him.

"Monsters, monsters......"

"What youkai?"

Gao Cheng planted a warning sign at the edge of the forest and put the black bear leather on the golden retriever.

The size of the comparison is just right, and the prisoner should have taken advantage of the dog, but even with the miniature version of the warning tag, the golden retriever still doesn't look big.

Gao Cheng took a few steps back and reached the front of the hotel entrance.

If there is a fire and thick smoke, the forest behind it will not have much effect, the key is the wall next to it.

"I see," Gao Cheng remembered the wooden stick that had been burned in the corner of the wall earlier, and there was still cloth on it.

With the ability of the glasses aunt, it is not difficult to use the set painting to form visual errors, if it is designed in advance, take a little more time to picture the fake wall, and cooperate with the visual partition of the big tree on the side, you can completely deceive everyone.

Then there's the way to control the golden retriever from taking the warning signs......

When it comes to controlling dogs, there is generally only a dog whistle, did the glasses aunt blow the dog whistle at that time? There shouldn't be a chance.

Gao Cheng turned back to face the confused crowd.

Yes, if you want to talk about sound, there is a very obvious sound at the time of the crime, the call of the "ostile" that will cause a strong reaction from the golden retriever.

"That, Detective Joto," Yokogou said stunned with the phone, "...... you are"

"Officer Henggou," Gao Cheng gathered his thoughts and said, "Don't rush to ask your superiors first, this case is not a monster disorder, just a pure murder case...... Can you lend me some of my men? ”

"Ugh."

Henggou nodded in a trance, and then saw Gao Cheng bring the golden retriever in bear skin into the hotel again.

The fake snake at the bearskin tail is quite eye-catching.

"Wait, Joto!" Hattori finally reacted and hurriedly followed upstairs.

What kind of person is this, he can still cut off his beard halfway.

In the glasses aunt's room on the second floor, Gao Cheng pushed open the window and looked down.

He didn't have time to prepare the wall paintings used to form visual errors, although he also had proficiency in painting skills, but in this case, it was estimated that he would have to prepare a whole sheet and draw it until when.

And there is no need to reproduce the scene for everyone, as long as the method is analyzed.

"I said Joto," Hattori and Conan appeared in the room and asked strangely, "have you solved the puzzle?" The mechanism of the monster, and the method of killing people in the secret room......"

"Hattori," Gao Cheng said, "when the voice of the ostrich sounded just now, this golden retriever barked again, right?" When the ostriches appeared before, did they also call? ”

"It doesn't seem to be," Hattori was stunned, thinking of the bear skin that Gao Cheng had put on the golden retriever just now, "Are you saying that the true face of the monster is actually the golden retriever?" It's a lot like it when you put it on a bearskin, but ......"

"The bearskin prop was found in the depths of the hotel locker, and it was put together with a miniature warning sign, and it should have been brought back by the Golden Retriever."

Gao Cheng slowly analyzed.

"This dog must have been trained, and when he heard the instructions, he would go and bring the warning sign back."

"I see," Hattori himself is very clever, and has done a similar investigation, "the prisoner used a trick to make the dog in bear skin look tall, no wonder I always felt that something was wrong, the tree, and the burned stick, but what was she going to instruct?" Everyone rushed downstairs together......"

"The problem is the call of the ostrid."

Gao Cheng picked up the wine glass in the room and filled it with water to wet his fingers.

"The last time the phone was put away, there was still a scream.,Miss Masuko stayed in the room again.,That's all I can use.,

That sound is actually a loud echo caused by rubbing your fingers against the rim of the cup. ”

"Buzz ——!"

Almost the same strange sound came from Gao Cheng's hand, and at the same time, the golden retriever dog still wearing a bear skin suddenly barked, ran out of the hotel through the back door, and finally appeared on the side, like a real monster with a miniature version of the warning sign in his mouth and returned to the house.

Henggou and his party stared at this scene with wide eyes, and the aunt with glasses directly changed her face.

"It's that simple," Gao Cheng looked at the glasses aunt below, "I've been here to feed the Golden Retriever, and it should be Miss Masuko who trains it, all for this murder plan." ”

"What about Mr. Danze? How exactly can I kill Mr. Tanzer? Hattori asked suspiciously.

In fact, when he saw the bear skin on the golden retriever, he almost thought of the method of the first case, but the death of Danzawa Daogui is difficult to explain.

"Mr. Tanzawa's murder was doomed from the beginning," Gao Cheng was continued, "I heard that the reason why Xiaolan and the others looked through the drawers was because Miss Masuko guided them, saying that they found mice in the drawers in their room, so Xiaolan and the others should pay attention...... But strangely, there may be rats in the hotel, but I can see the drawers in Miss Masuko's room, and there is no trace of rat activity at all. ”

Aunt Glasses kept her face calm and didn't speak, only the expressions of the people around her were suddenly far away from the aunt.

"Actually, Miss Masuko's purpose is to let the notes in the drawer of the room on the third floor be discovered," Gao Cheng continued, "Mr. Tanzawa is much more interested in notes than everyone else, and it was because you brought it up first that Mr. Tanzawa said that he wanted to change rooms. ”

Xiaolan was surprised: "Really, it was Miss Masuko who first said that she wanted to change rooms, but she was interrupted by Mr. Danze." ”

"That's his purpose, if Mr. Tanzer moves upstairs himself, on the one hand, it will reduce the suspicion of murder, and on the other hand, it will be easier to start."

Gao Cheng made a simple water spray device out of the soda bottle in his aunt's room.

"The key to the second case is in this bottle of soda, red wine cork, ballpoint pen refill, and tape paper, first press the refill as the spout with your finger, shake the water bottle vigorously, and then release your finger, the water inside will spray out like a water gun.

The reason why the ground catches fire out of thin air is because the metal sodium hidden in the grass wrapped in paper is sprayed with water, causing a chemical reaction to burn and catch fire.

In the same way, if you can spray water, of course, you can also spray poison needles and the like, just like when you open a champagne, the lid sprays flying, and Miss Masuko takes advantage of Mr. Tanzawa's probe to check the fire, and attacks from below, as long as you tie the thread on the poison needle in advance, you can immediately recover it after stabbing Mr. Tanzawa.

The most obvious proof of this is that the windows in the upstairs rooms are only half open. ”

Facing everyone's attention, Gao Cheng reasoned, and finally said: "These are very thoughtful, but there are many traces left, it is not difficult to find evidence, and the poison needle is probably hidden in other refills now." ”