Just when Zhang Can contacted Bai Yu to deal with the next matter, similar chaos occurred in the rest of the large and small college entrance examination centers in Yanjing City.

It's just that without Zhang Can's move, these test centers are not as lucky as Yanling Middle School.

Casualties, everywhere.

Many examiners were injured because they blocked the candidates, many candidates were injured because they competed for the heavenly elixir, and many parents were also pushed to the ground because they wanted to enter the test center.

Even the inspectors who came to maintain order were killed or injured due to a conflict with the candidates who had taken the Celestial Elixir.

The situation is getting bigger and bigger, and the situation is very serious.

Suddenly, the eyes of the entire Great Xia converged on the national capital, Yanjing City.

At the same time, the name of the goblin thief group also spread throughout the country.

Everyone was curious about what kind of stop this was, not only to steal the potion from the secret laboratory of the Celestial Group, but also to drop the potion from the air into the various examination rooms in Yanjing City without the gods knowing.

……

After "please" all the candidates on the rooftop and arrange the temporary disposal method, Bai Yu also came to Zhang Can's side and began to seriously observe the metal box on the rooftop.

Like most people, Bai Yu's first reaction was how such a metal box was placed on the roof of the teaching building.

Is it thrown directly from a high altitude with a deceleration device like a parachute?

Or did you take advantage of drones that can fly at low altitudes?

Looking at the metal box and the ground around the metal box that had been smashed out of circles, Bai Yu fell into deep thought.

However, at this moment, Zhang Can's voice suddenly sounded.

"It turns out that it is not from heaven." After carefully observing for a while, Zhang Can suddenly spoke: "Principal Bai, can you please call up last night's surveillance video for me to see?" ”

"Huh?" Bai Yu was slightly stunned, frowned, and said, "Master Zhang, what do you mean...... Didn't the potions actually fall from the sky? ”

"Of course." Zhang Can nodded and affirmed: "If it is a low-speed delivery, there will be no such cracks on the ground of the roof." And if it is a low-altitude and high-speed delivery, it is impossible not to alarm the air defense radar of Yanjing City in the case of such a large number.

Therefore, there is only one truth - these metal boxes were placed in the examination room in advance. ”

Bai Yu pondered for a moment and wondered, "But, how to explain that muffled sound?" ”

"It's simple." As he spoke, Zhang Can suddenly bent down, reached out and touched the ground next to the metal box, and continued while opening his palm to show Bai Yu:

"See this black powder, it is the product of the burning of gunpowder, which means that it is likely that a small time bomb was installed on this metal box to explode to simulate the result of a fall from a height."

Saying that, Zhang Can stretched out his hand and closed the metal box again, took a step with long legs, stood directly on the metal box, and said after jumping a few times: "With the sturdiness of this incubator, there should be no problem in defending against directional blasting miniature bombs." ”

After speaking, Zhang Can looked at Bai Yu calmly, waiting for his answer.

But Bai Yu opened his mouth and made a picture of wanting to speak and stopping.

Obviously, the old fox has actually agreed with Zhang Can's speculation, but he still has some unknown concerns.

Zhang Can was obviously not interested in caring about what Bai Yu was hiding, so he directly frowned and said:

"Although there are still many loopholes in this speculation, it is obviously much more reliable than air delivery, and it is very simple to verify, as long as Principal Bai can provide the surveillance video of the school in recent weeks, and find out who has been on the roof, you can know the truth."

"This ......" Bai Yu frowned, and finally gritted his teeth and said, "Then ask Master Zhang to come with me!" ”

"With you? No, I think you're mistaken. Zhang Can looked at Bai Yu a little strangely and said: "I don't have time to accompany you to see any surveillance video, you should check this matter yourself, I just hope to know the results of the search as soon as possible." ”

After speaking, Zhang Can patted the dust on his hands, turned around and walked in the direction of the entrance of the rooftop, and said without looking back as he walked: "Then, my disciples and I will leave first, and if there is news about the next college entrance examination arrangements and search results, please contact Principal Bai in time." ”

"Uh......"

Looking at Zhang Can's handsome back, Bai Yu blinked in confusion.

He never expected that after thinking of countless excuses to cover up something in the surveillance video, Zhang Can didn't plan to watch it in person at all!

This kind of practice of not playing cards according to the routine makes Bai Yu, a calculating old fox, uncomfortable.

But soon, Bai Yu's thoughts were focused on the metal box on the side again.

"Have you ever been to someone on the roof......

As a cautious principal, if it were another place in the school, Bai Yu might indeed have to watch the surveillance footage to find the answer.

But if it is a rooftop that has been sealed since he took office,

Even if he didn't check the surveillance video, Bai Yu already had the answer in his heart.

Because, on the rooftop of Yanling Middle School, only those workers who come to install the shielding instrument every year in the college entrance examination can enter.

Thinking of this, Bai Yu directly frowned, and couldn't help but say in a deep voice:

"It seems...... It's really a big deal. ”

……

Just when Bai Yu was about to go to the monitoring room and call up the video of someone from the Ministry of Education inspecting the examination room last week, Zhang Can took his disciple and got into the taxi of the eldest brother No. 7456 in a hurry.

Along the way, including Hao Qiang, several people in the car didn't say a word.

But everyone's eyes were vaguely focused on Tian Miaomiao's body.

That's right, when informing Bai Yu, Zhang Can did not tell Bai Yu about the last celestial elixir, but just asked Tian Miaomiao to bring the elixir.

This is the real reason why Zhang Can did not check the surveillance video.

After all, compared to surveillance, which may not necessarily find answers, this real celestial elixir can obviously find more valuable clues.

Soon, the elongated limousine stopped in front of the main entrance of the Taiji Gate.

Zhang Can, who got off the bus in a hurry, didn't even have time to taunt Brother No. 7456 as usual, so he took Tian Miaomiao and the others directly to the owner's residence.

"Twisted ......"

After a burst of the sound of the old wooden door turning, Zhang Can and the others finally came to the well-soundproofed residence of the owner.

Immediately, Hao Qiang said excitedly: "Master! The apprentice is willing to become a guinea pig and test the medicine for the master! ”

Zhang Can: "......"