Mu had already stood up, staring at the five children from far and near, and he was deeply moved! Although he had already given a time limit of five hours before the five of them set off, according to his estimate, with the current physique of the five children, they would definitely be late today! And the late time was at least about three hours! For them now, eight hours to go back and forth was enough to satisfy Mu, but they didn't expect that they would come back in just six hours! And it was five people together, and none of them were left behind!

The five people arrived at the shore, and the rope under their waists didn't have time to untie it, and they fell to the ground at the same time, and the three of Mantou, Hao Yanyan and Ruan Yexi fainted directly, only Chen Mo and Fuyou still had a trace of consciousness, their limbs trembling uncontrollably, and they were wheezing violently! Looking at the bodies of the five people, everyone seemed to have been soaked in water, and everyone's clothes were wet!

"You're late!" Although Mu was very satisfied with the performance of the five people, he did not show it, but criticized him harshly as soon as he opened his mouth.

"Know...... I know......" Floating struggled to sit up, and said dejectedly, "We're a full hour late, teacher, you punish us!"

"Don't be in a hurry!" Mu's huge body sat on the ground again, his paws scratched under him, took out a tray, and pushed it in front of the five people, "You guys, eat this, and then start punishing the subject!"

Floaty struggled to stand up, walked to the tray, and lifted the cloth, "Or is this it?!"

Inside the plate, there were five black, swarthy lumps of objects, the same as what the five had eaten on the other side of the desert.

"Teacher, what is this blood-stamped ingredient?" Fuyou picked one up and threw it into his mouth, feeling the warm feeling transmitted from his stomach to his whole body, sighed comfortably, and asked. Chen Mo also stood up, walked to the tray, picked one up and threw it into his mouth, raised his head, and waited quietly for Mu's answer.

"This is the tuber rhizome of the green snake vine!" Mu replied, "The snake spirit beast is recognized as the most resilient! Moreover, the tuber rhizome of the green snake vine, this blood-mark ingredient has a neutralizing effect, and after any human eats it, it will not have much conflict with its own beast spirit, which can greatly improve the toughness and endurance of the eater, and it is also the most suitable blood-mark ingredient for you at this stage! A while ago, Xiao Wan left the academy and went to the Yunhai Empire to purchase this blood-mark ingredient, and on the way back, she also saved the two of you by the way!" Speaking of this, Mu raised his paw and nodded at Chen Mo and steamed buns.

"Wake up the three of them! Eat the remaining three pieces, I'll give you ten minutes, take a short rest, and then enter the punishment time!" Mu's words made the steamed bun who had just woken up almost faint again.

In ten minutes, Ruan Yexi and Hao Yanyan woke up one after another, the two of them were just seriously out of strength, and after resting for a while, they got a lot better, eating the green snake vine rhizomes prepared by the teacher, and the state of the five people slowly recovered, although the spirit was still tired, but the physical state had recovered.

Although they finished the whole distance with each other's support, but they did not wait for Teacher Mu's punishment within the specified time, the five people looked at each other, lowered their heads, and quietly waited for Teacher Mu's punishment.

"The rhizome of the green snake vine, the effect it brings to you is definitely not just to restore your current physical strength, it is an all-round improvement of your physical fitness!

The five children answered, and jumped on Mu's back worriedly, waiting for the next punishment.

Mu used his limbs together, and the speed of running was extremely fast! The five of them felt that the scenery around them flashed quickly, and after a while, they returned to the basin where the academy was located. This time, Mu didn't take everyone back to the cafeteria, but ran to a corner.

Before reaching their destination, the sound of the water was slowly amplified in everyone's ears, and the air became much more humid.

Finally, the speed of Teacher Mu under him gradually slowed down, and the sound of a huge stream of water came.

"It's here!, come down!" Mu shouted back.

Five people jumped down and stood on a cobblestone path, looking for the direction of sound. After turning a corner, a huge waterfall appeared in front of everyone. The waterfall is 20 meters wide and has a drop of more than 50 meters! The huge water crashes against the stones at the bottom of the bank, making a 'whooshing' sound, and the water splashes in all directions, collapsing on the cobblestone path on the shore.

"You five, jump down!" Mu raised his paw and pointed to the round lake under the waterfall.

"Huh?!" the five reflexively lowered their heads, looked at their clothes, and looked at each other.

"What are you afraid of?!" Mu Man looked at the five children indifferently, "The clothes on your bodies are all specially prepared practice clothes, and they won't run out, besides, how old are you little guys, what kind of mess are you thinking about?!

Seeing the blue light surging at the tips of Mr. Mu's claws, the five of them exclaimed, for fear that they would be one step too late and rush to jump into the lake!

The water of the lake was cool, and the nerves of the five people, who were originally exhausted, were stimulated by this cold water, and suddenly sobered up a lot, and showed their heads in the lake one after another, waiting for Teacher Mu's instructions.

"See that waterfall?" Mu raised his paw and pointed into the distance, "I want you to swim to the bottom of the waterfall! There are five cobblestones, I prepared them for you, you have to climb on the cobblestones, stand on the cobblestones for three hours, this is the punishment I gave you!"

When he finished speaking, none of the five people refuted, turned around in the water, and went down the waterfall together.

The closer they got to the edge of the waterfall, the five of them realized how difficult this punishment was, the sound of the water became more and more noisy, the huge waterfall fell from a height of more than fifty meters, hit the cobblestone, and the water splashed, like fists, fell on the bodies of Chen Mo and the others, so close that they couldn't even open their eyes, they could only squint slightly, and their ears were filled with the sound of roaring water, and they couldn't hear other sounds.

Chen Mo was the first to reach the bottom of the cobblestone, and instead of blindly trying to climb up, his eyes narrowed slightly, and he swam around the cobblestone, carefully looking at the cobblestone. It turned out that there were some grooves cut out with a sharp blade at the back of the stone, and looking at the incisions, they should have just been drawn recently, which could be used for climbing! Chen Mo didn't think much about it, took a deep breath, used his hands and feet together, and climbed the cobblestone.

Chen Mo, who had just stood on the cobblestone, was instantly swept back into the lake by the waterfall rushing down above his head!

Chen Mo was the first to climb the cobblestone, but he was also the first to be washed down by the water!