Oxygen, nitrogen, carbon dioxide, inert gases......

The proportion of oxygen necessary for survival in the current crystallized cage has dropped to 17.8%, and if it is normal for 20 people to breathe, it will be reduced to 12.5% if there are three more hours at most.

When the oxygen level decreases, people fall into a drowsiness and eventually die unknowingly in their sleep!

Raymond, frightened, faced with the eye-catching three-hour countdown in his sight, took a deep breath and roared. "Everyone's gathered, the wizard apprentice stands next to old Barney!"

was startled by Raymond's roar, but everyone in the crystallization cage immediately began to gather, especially those ordinary people, who were afraid of being wrathed by the wizard in such an environment, which would lead to an accident.

Faced with Dorothea and Barney Sr.'s inquiring eyes, Raymond, who was frowning, decided not to explain the reason first, but instead began to interrogate the three wizard apprentices. "Which of you knows how to use light magic?"

He shook his head blankly, but the young third-level apprentice who had released the fire spell just now had the courage to open his mouth. "I, I'll make an improved version of the lighting technique, which is said to be improved after combining the light system technique, which is much stronger than the ordinary lighting technique!"

"Raymond, what level of light spell do you need?" Dorothea, who rested little Stassy's head on her shoulder, asked with some hesitation. "I know how to use several light spells, but the effects are different......"

"As long as it's a spell that mimics light, I need to make the plant grow normally!" Raymond didn't dare to delay any longer as the countdown began to beat rapidly in his sight. "Ordinary people all lie down on the spot and start resting, and the three of you will perform the lighting technique!"

Having said that, Raymond, who had started rummaging through his pocket, quickly took out the seeds he had bought in the "Old Wood" shop.

With the three wizard apprentices, he stood in the corner of the crystallization cage and followed the Raymond plant growth spell. The plants that had grown rapidly in his hands were soon brought into mature form, and Raymond was thrown to the ground.

The leafy plants occupied all the corners of the crystallization cage, and Raymond, who casually cast the illumination technique, placed the position of the illumination technique at a height of ten meters.

The plants that were spawned as concocted by the same method began to spread along the walls of the crystallization cage, and the three wizard apprentices were also required to be responsible for each of the plants at a distance, maintaining the range of their spell lighting.

Less than an hour. The oxygen concentration in my sight, which was still slowly decreasing, finally showed its effect, and ordinary people with poor physique had already experienced slight breathlessness.

But Dorothea and Barney Sr., who had been following Raymond all the time, somewhat understood Raymond's intentions. In particular, the light spell that was cast by Dorothea made Raymond, who was extremely nervous, finally relieved.

A simulated red sun with no attack power. Although the brightness is not particularly high. However, under the analysis of the chip spectrum, it was found that the radiation breath emitted by this technique was very similar to ordinary sunlight, and the slowly released ultraviolet rays were necessary for the growth of plants.

Most of the seeds of ornamental plants in the waist sac were spawned by Raymond using magic. And those plants with small leaves were directly destroyed by Raymond after they were spawned.

Because in order to produce oxygen through photosynthesis in such an environment, it is necessary to have a large number of plants with thick leaves.

Raymond, who had circled around the crystallization cage, watched as four spell lights appeared above his head. and the red sun that Dorothea had cast, and the oxygen concentration maintained by the chip in his line of sight had finally shown a slowing downward trend.

The problem of light was solved, but the plants that were photosynthesizing under the influence of the spell soon showed wilting and yellowing leaves, which reminded Raymond.

After taking out the compressed water test tube in the waist bag, the oxygen concentration has decreased to 16.2% with the water irrigation, and finally it no longer decreases but slowly rises.

"Teach this method to the rest of the crystallization cage," Raymond immediately explained to Dorothea Barney Sr. without waiting for the oxygen concentration to rise to a normal level. "Also, if there is really no way, we can only let everyone fall asleep, which can delay the time of suffocation and death!"

The two who quickly retrieved the spell interface immediately began to contact the other people in the crystallization cage, and Raymond quickly thought of the most important question, which was about fire spells.

After any fire-based spell is cast, although it consumes the wizard's mana to remain in a state to be activated, these fire-based spells also need to consume a lot of oxygen.

Open source and reduce expenditure, the two prongs are the safest way.

But not long after Dorothea and Barney sent the message out of the room, the crystallization cage to the right of Imprisoning Raymond and the others suddenly erupted with a violent spell light, and for a full minute, the crystallization cage over there continued to flicker with a faint glow of spells.

Lying in the corner of the crystallization cage, with the help of the adjustment of the lighting angle of the spell, Raymond could vaguely see that there seemed to be a fight breaking out there, but soon there was no light in the crystallization cage, and calm was restored.

His heart sank, and he knew that there must be something wrong with Raymond, but when he turned around, he saw Dorothea with a pale face.

Her delicate face had lost its blood, and her blue eyes had a hint of horror. "Modo, Modo's breath of life is gone!"

"How do you know Lu Dao?" Raymond, who frowned, immediately thought of a possibility, but he still gave a guess according to the best result. "Maybe it's disturbed by some kind of radiant breath, you should send him another message. ”

"Impossible!" there was a hint of sadness in her eyes, but Dorothea's tone was extremely firm. "The life mark of Modo will not be disturbed by any radiation aura, even if you are in a large rune array, the aura given by the Modo family will be displayed immediately!"

Seeing that Dorothea's expression was a little sad, it was not like the kind of sadness that he treated his relatives, and Raymond, who hesitated, still said what he thought. "So if something really happens to Modo, will his family send someone here to investigate?" (To be continued.) )