Luo Yu looked at the time displayed on the system panel again, at 14:10.

The time for the clock tower has been adjusted soon!

[Exam time is up, automatic submission, and the answer rate after testing is: 1%. This task failed. Will you read the file?]

This sudden failure made Luo Yu and others look at each other in a glance. The time for handing over the paper is calculated based on the time of the clock tower!

For a moment, everyone's faces became gloomy. Looking at the students who were upset in the exam room, Luo Yu pondered for a while and chose to read the file.

A light flashed in front of me, and Luo Yu and his friends returned to the empty Yucai Building.

Time went back to nine o'clock the night before.

Na Keer stamped her feet and said, "Damn it, there are people in the clock tower, let's kill him!"

"Optimus Prime!"

Luo Yu agreed, Optimus Prime appeared in the air and flew towards the bell tower, but as soon as he approached, he was blocked by an invisible light curtain.

[Tip: All items cannot be approached by the clock tower]

“Huh?”

Everyone was stunned, not because of the air wall, but because they were reminded that everything could not be approached, including the students in the school, teachers and other things.

Fang Yumeng hesitated and said, "The first two exams were normal, and no one came close to him. How could the big clock suddenly break?"

"This copy is too difficult." Anna sighed: "Before the failure, there was no sign of a sign, we paid hundreds of thousands of dollars in reading fee. Which idiot designed this copy?"

"Husband, do you know why the dungeon is so difficult?"

"This...hahaha, maybe it's hard."

Luo Yu laughed dryly and said seriously: "Go back to the room first and then chat."

Elena said with some striking expression on her face: "Do you still eat hot pot like yesterday?"

Alice chuckled: "You can try different flavors this time."

Late at night, everything is silent.

Anna and the others were all asleep, while Luo Yu and Fang Yumeng left the dormitory together and came to the bell tower of the playground.

After investigation, the two of them did find that they could not enter the bell tower at any angle, and there was nothing special nearby. Fang Yumeng hesitated and said, "Husband, should we try to force the air wall?"

"It should be useless."

Luo Yu patted the transparent wall in front of him and pondered: "This time the copy is different from what we have experienced in the past, there must be some hidden thread."

"I noticed that the key figures in the exam room repeatedly mentioned the word "principal". Will the key to unlock the bell tower be on the principal?"

"Principal... I remembered that, everyone seems to say that he hasn't been to school for a long time..."

Fang Yumeng said while thinking, suddenly figured out something, and suddenly said: "I understand. The key to this level is to find the principal. No one in the school knows where the principal is. Maybe he was kidnapped by some boss!"

"The location is definitely still within the school, what we need to do is to collect clues about this as soon as possible."

Luo Yu smiled lightly and said, "This is also a way of thinking. Let's do it. Tomorrow we will split into two groups. You and Anna and the others will ask the school staff to find clues. I'll see if there are any other possibilities."

"good!"

The two of them finished their discussion and waited for the sun to go up the mountain.

In the early morning, everyone started to act early, while Luo Yu was walking alone on campus to find clues.

He always felt that it was not that simple. The air wall covering the bell tower was very clear. No creature could enter the bell tower. So how did the other party adjust the time?

"Where is the secret?"

Walking slowly along the sparkling stream, Luo Yu's eyes inadvertently threw themselves into the water.

The stream is clear, and occasionally groups of small fish swim happily in the water. As the small fish swim, the stream water ripples out layer by layer. Under the refraction of the sun, it is like a circle of ribbons spreading gently, which is quite beautiful.

“River?”

"Will the reflection of the stream reflect the sunshine colorfully?"

Luo Yu's eyes showed a strange look, he stepped forward a few steps, squatted by the stream under the shade and observed carefully.

Behind him, several girls from the high school group followed him far away. They all blushed slightly, as if they wanted to come up and talk to each other but didn't dare.

Luo Yu had noticed them before. Not only these girls, but also boys in the high school group would blush and secretly glance at Anna and the others. After all, they are so beautiful that everyone has long been used to it.

"The high school group has the largest number of people and seems to have the richest feelings."

Luo Yu gave them a definition and focused all his attention in the stream.

After observing for a while, he discovered an abnormality.

The rippling ribbon is not simply reflecting the sunlight, but because there are pebbles with color at the bottom of the water, which makes the water surface so beautiful under the reflection of the sunlight.

He reached into the water and Luo Yu wanted to take a piece to see it, but the moment he held the pebbles, he was slightly stunned.

With his strength, he couldn't even pick it up!

"this……"

He strengthened his arm strength again, but no matter how hard he used, the pebbles seemed to be growing at the bottom of the water, without moving at all.

Luo Yu has the power of 9999. This situation made him happy instead of being surprised. Maybe the clues are here.

He turned around and took out a colorful spear, and the tip of the spear accurately pierced the pebbles.

"bite!"

With a crisp sound, the colorful spear bounced back directly, and the pebbles were indestructible!

"There's something like this!"

The colorful spear attacked again, but the pebbles next to it were shattered in response to the sound, but incredible that the crushed pebbles quickly returned to their original state under the impact of the water flow.

[Tip: You cannot destroy this environment by normal means]

Protection mechanism!

However, unlike the ordinary protection mechanism, it is said that it cannot be destroyed by normal means and without fixed death.

There was a light flashing in Luo Yu's eyes. Even if this was not a clue to the third exam room, it was definitely a hidden mystery.

At this moment, a soft cry came from behind him, and he turned to look at it. It turned out that a girl was pushed out by the other companions to hide in the little tree.

"Go! Don't you like the teacher? Give it to him!"

"Jiang Xiaoshu, go up quickly, or you will be snatched away!"

"You are the principal's granddaughter and the student president that everyone admires! Where is your previous courage?!"

The girls seemed to be encouraging the girl, and the short-haired girl named Jiang Xiaoshu snorted at them. When she noticed Luo Yu's gaze was looking at him, she trembled slightly and her face turned red.

Taking a few deep breaths, Jiang Xiaoshu seemed to cheer herself up. She quickly stepped forward and trembled slightly to take out a letter from the pocket of the school uniform skirt, stuffed it into Luo Yu's arms, and then turned around and ran away!
Chapter completed!