The crack of the replica of the Liberty Bell was just a signal, and then the real Liberty Bell was shaken out of the exhibition hall by the explosion from the lower floor, flying out with the fragments of the surrounding protective glass barrier, and falling directly on the street, where a passing sedan scrambled to dodge and crashed into an electric pole on the side of the road.

"Get off! Hurry! "The driver opened the door and instructed the tourists to leave the neighborhood while beckoning them to get out of the car.

The three of them also got off the bus immediately, although they were also a little confused, but they also expected this kind of thing to happen, and at the same time, they could also be sure that they had been being watched, and they chose to explode around the Liberty Bell when their sightseeing bus arrived, which is a good proof.

"Walk straight ahead to Independence Hall!" Gu Huaiyi stuffed the camera back into his backpack, pulled off his sun hat and began to run in the direction of the Independence Hall, while there were many people running in front of him in this direction, and several police cars had already arrived not far away blocking both ends of the road, and the policemen who got out of the car were waving their hands to quiet the frightened people and follow their instructions to leave the block.

"Knock-knock-knock-" The three of them suddenly heard the bell ringing, but the sound was not coming from the real bell, it sounded like it was coming from the ground, extremely dull, and when the bell rang, it seemed that the whole earth shook with it, and many pedestrians who were running slowly stopped and stared at the ground in front of them.

Gu Huaiyi turned to face the Liberty Bell, the real Liberty Bell had now been swept to the center of the street by the explosion of air, and when the bell rang, many people locked their eyes on the Liberty Bell. Subconsciously think that the bell is ringing from there.

"Crazy Gu, what's wrong with you?" Tang Shuxing looked in the direction Gu Huaiyi was looking.

"Many years ago, when I was traveling to Philadelphia, I came to the Liberty Bell, and the narrator at that time had a sentence that stuck in my mind, he said that the people who heard the Liberty Bell ring have long since left this world, and they are the pioneers who defended this land of freedom." Gu Huaiyi said, and raised his hand again to signal Tang Shuxing and Ji Kefeng not to talk anymore. He slowly lay on the ground. Listening to the movement below, "There seems to be something down there." ”

"Boom-" There was a strong vibration on the ground, like a giant stomping on the ground fiercely, and Tang Shuxing trembled. The whole person was shocked and bounced a few centimeters high.

The streets fell silent in an instant. Everyone looked at each other. I don't know if I should run or stop now, and the policemen with guns are also looking around, not knowing what happened to Lu Dao.

The siren of a fire engine quickly broke the peace. Three fire trucks came from the north street, shouting over loudspeakers for the police to help move the cars blocking the road, but just as the police were about to rush over, the ground where the fire trucks were located cracked, and the cracks spread like cobwebs, and there was a strange "crackling" sound.

The firefighters in the fire truck immediately opened the door and looked at the ground, and as soon as they probed, the whole body suddenly sank under the ground, and before they could react, a big hole immediately appeared in the position of the first fire truck, and the fire truck fell directly into it.

"Ahh

The police officers who rushed there were dumbfounded, standing five or six meters away from the pothole, sweating profusely, and then the ground around them continued to crack, and the police ran towards the police car, while shouting for the surrounding crowd to disperse.

"I'll go to his uncle's, is this also what Yaojin did?" Tang Shuxing dragged Gu Huaiyi and Ji Kefeng, turned around and ran towards the position of the Independence Hall, "Get out of this area, hurry up!" ”

The crowd scattered and began to run towards the locations of the National Independence Historical Park, Independence Hall, the American Philosophers' Association, and the center of Philadelphia, screaming and screaming, and the cracks in the ground were like living demons, spreading in all directions, chasing the footsteps of everyone around them, and gradually expanding the width of the cracks as they spread, devouring the people who could not escape.

"Hurry, hurry! Almost there! Tang Shuxing ran wildly in front, looking back at the crack chasing them from time to time, and just as they arrived outside the Independence Hall building, the crack chasing them also stopped, but the width of the crack was half a meter long, and the vibration was also frequent.

"Can't go in!" Tang Shuxing looked around, and then pointed to the lawn on the side of the independence hall, "It's relatively wide, even if there is a building collapse, it won't hit us, hurry up there!" ”

"Is this an earthquake!?" Ji Kefeng asked wildly.

"Philadelphia has never had a catastrophic earthquake in its history, and the shaking was only regional." Gu Huaiyi ran to the center of the lawn and stopped, and the shaking also stopped at this time, but a thick gas began to slowly emerge from the crack in the distance.

The gas was pale yellow, like a human hand, climbing around, enveloping everyone and everything around it, and then the gas became more and more and more dense, and the buildings, cars, and people around the cracks and craters were swallowed up by the thick fog, and no sound could be heard from it, and the previous screams and cries disappeared in an instant, as if the switch of the tape recorder had been turned off.

"Philadelphia is making global headlines again." Tang Shuxing looked at the Independence Hall, "The speed of our escape is definitely not as fast as the spread of this yellow mist, we still have to find a hiding place." ”

The three of them immediately rushed to the Independence Hall, and when they entered the Independence Hall, they found that there were dozens of tourists hiding in it, all looking at them with frightened expressions.

"What's that out there? Poison gas? Terrorist attack? A staff member standing at the window looked outside, and other tourists who did not dare to approach the window also slowly approached at this time, staring at the yellow fog that had blocked everything outside, and many people immediately turned away from the window after taking a look, and discussed whether to run up, because the dense fog seemed to only rise to a height of three or four meters.

Tang Shuxing looked around, and didn't know what they should do now, Iron Tooth just told them the coordinates, and Yu Xin didn't tell them before he died, how to get a fake Red Phoenix Feather at this coordinate, the key problem is that no matter how you look at this location, there can be no such thing as Red Phoenix Feather, it is a mineral, how can it be in Philadelphia Independence Hall?

"We can't leave." Ji Kefeng looked out the window, "This yellow fog is too weird, I don't know if it is poisonous or not, and it has not penetrated into the building, as if it has vitality." ”

"I'm leaving! I must leave! A tourist rushed to the door from the front, "We'll be captured by terrorists if we stay here, so let's fight instead of sitting and waiting!" ”

When the tourist rushed to the gate, the staff rushed forward to stop him and said: "Don't do anything stupid, we should stay here and wait for rescue, you don't know what's going on outside the road, maybe those yellow fogs are poisonous!" ”

"If it was poisonous, we would have been poisoned to death, and some of the poisonous gas might have penetrated in a long time ago!" As soon as the tourist pushed the staff away, opened the door and rushed out, but subconsciously covered his mouth and nose.

After he left, the staff quickly closed the door, and then stood at the window and looked at the thick yellow fog, at this time the tourist in the thick fog could no longer be seen, and no sound could be heard.

"Looks like it's fine." Some tourists also had the idea of leaving, "If he had something, he would have called out a long time ago." ”

"I think so." There are also tourists who agree.

"No, what if he's killed if he gets out of the way?" There are cautious tourists who don't want to do stupid things.

Just before the tourists' discussion escalated, there was a sudden knock on the door, and the sound was so heavy that it sounded like someone was slapping their entire arm on the gate.

"Who is it!?" The staff stepped forward tremblingly and did not immediately open the door, although everyone knew that the door could not block anything at all, not to mention the use of guns, but the use of human bodies could be smashed open.

The sound of banging on the door continued, and no one outside spoke, just as the staff was about to open the door, Tang Shuxing immediately stepped forward and signaled them to stay away, while he and Gu Huaiyi each pulled out the dragon lin blade and the yin bee and clinged to the sides of the door.

When the two of them pulled out their weapons, the people around them were startled and dispersed in an instant, and the staff were also terrified.

"We're not bad people, and if we were, you'd be dead." Gu Huaiyi whispered to the staff, "Tell them to stay away, we have to open the door to see the situation outside." ”

The staff thought for a few seconds, but still did as Gu Huaiyi said, dispersed the tourists, and let them lean against the back of the hall and hide behind tables and chairs.

Ji Kefeng hid behind the table on the side with a gun, pointed the muzzle of the gun at the crack in the door, and then nodded to Tang Shuxing to indicate that he was ready.

"Crazy Gu, do you think it could be a walking corpse outside?" Tang Shuxing opened the door as he spoke, but only opened a crack, and when he was about to get closer to see, a person slowly pushed the door open directly along the crack in the door, and the whole person fell in.

"Ahh

Tang Shuxing glanced out of the door, and after asking Gu Huaiyi to drag the man in, he slowly closed the door again.

"It's the tourist just now." Gu Huaiyi recognized the clothes that the guy was wearing, and when he flipped the guy over, he was also startled, and at the same time immediately raised his hand to signal the staff not to approach, because the tourist who ran out of the gang before had a purple face and a dense layer of abscesses the size of soybeans.

"Yellow mist is poisonous." Tang Shuxing looked at it, "But why is it that the face is damaged, and the rest of the body is fine?" ”

Ji Kefeng stepped forward to take a look, and immediately turned around and raised his hand to signal the tourists who were very curious and had the courage to come forward, but several tourists had already come around from behind the tables on the left and right, and after finding that it was the face of the tourist who ran out of the road and turned back, they all screamed: "That fog is poisonous!" ”

The remaining visitors and staff in the Independence Hall immediately erupted in terrifying shouts, and without organization, everyone ran down the corner staircase towards the location of the bell tower above, trying to avoid the extreme height that the yellow mist could rise. (To be continued......)