Mathematical addition and subtraction

Just then, a violent tremor came from all around, followed by a spinning sensation. Bai Mo stepped to the side, and the Magnetic Field Power held everyone firmly in place like a steel cable, while gravity was maintained at normal.

"What's wrong?"

Ophelia asked with some concern, while Bai Mo keenly sensed a powerful force flowing through the surrounding flesh walls.

"Jormungandr is fighting. We have no time. Mimir, as a wise elder, you should have a way, shouldn't you?"

"Yes, yes... Do you see that tree not far away? That's the spear Odin once used, now it's a tree, but it still retains the spear's function."

To see through the fog, one must sacrifice oneself. Actually, condensing it would work too; Odin pierced nine nights with one spear. If you could use nine spears together, theoretically... cough cough, theoretically one night would suffice... right?"

As Mimir finished speaking, the branches and leaves on the tree spiraled up and transformed into emerald green spears. The spearheads were incredibly sharp, gleaming with a cold light.

Upon hearing this, Bai Mo walked towards the tree. The leaves pointed straight at him like thorns. As he gently stroked the emerald green spear, Bai Mo felt a chill run down his spine.

"I must warn you, do not think that power can stop them. These will not only pierce your flesh, but also torment your spirit. You will experience indescribable cold, and you will suffer unbearable pain, the kind of pain that would freeze even the coldest soul in Helheim."

Moreover, there will be no limit. You will experience nine times the pain of Odin in a single day. If you lose your composure, you will fail and be disqualified.

So, it won't have any effect on the soul, right?

"No, otherwise Odin wouldn't have gone back so easily."

Hearing Mimir's words, Bai Mo strode in, but Ortlinde stopped him and said:

"Let me share some of the burden. I was born in Northern Europe, and I can't let you face this alone." Her eyes held an unwavering determination as she turned to Mimir and asked:

"Surely it is possible, isn't it? I am a creation of God, and everything I have belongs to Valhalla. He has guided me all the way, fighting for Valhalla and other lives. Mimir, as his comrade-in-arms, don't I have the right to share his pain?"

"When you dare to stand up, you are qualified. Bite your finger and write down the numerical allocation. This tree is the will of the Well of Wisdom; it will understand."

Looking at the stubborn Ortlinde, Bai Mo said seriously:

"You're just a demigod; it was Odin, the king of gods, who went through all this back then."

"I know... but as he said, wisdom is born from a long and bumpy road. I don't crave wisdom; I just want to make your path easier. Don't worry, if I can't hold on any longer, I'll give up on my own."

A smile appeared on Ortlinde's face, perfectly calm, like the smile of someone lying in the warm winter sun. There was no indication that she was about to undergo unimaginable trials.

Bai Mo sighed softly. Ortlinde was usually timid and submissive, but surprisingly stubborn on certain matters. He held up his finger, outlining three rules:

"Only one is allowed."

"OK."

"Ophelia, please be careful."

The two walked towards the large tree, its sharp leaves parting to separate them. Bai Mo asked Ortlinde to go to one side, and then wrote numbers on the tree trunk.

Ortlinde took a deep breath, then slowly wrote a "1" on the tree trunk.

Imagine a long, emerald-green spear slowly reaching towards her; however, the instant it touched her, Ortlinde felt her surroundings instantly change. The wind blew against her, and a sharp pain shot through her chest.

Upon closer inspection, it was a curled leaf, very sharp, that had pierced her flesh.

Looking around, Ortlinde felt a sense of disorientation. Undoubtedly, she was currently undergoing a mental ordeal. She couldn't help but wonder; although it had only been a day, this level of pain wasn't unbearable.

Logically speaking, even if it were only for a day, the pain would be no less than Odin's back then; this kind of wound is similar to when he was injured.

"Could there be a mistake? I am a creation of the Father God, and I am not qualified to make sacrifices. To offer myself up... Don't I belong to myself? Or is this all of myself I can offer?"

Filled with doubt and distress, Ortlinde squatted on the ground, pressing her head. A day had passed in the blink of an eye, yet she had not returned to where she was before.

"Is it possible that I have to stay in this spiritual world for nine days? I hope the flow of time here is different from that outside."

Fortunately, if that's the case, then it's still possible to persevere.

Nine days passed in the blink of an eye, and everything around her vanished like the Dahai tide. Ortlinde opened her eyes, and familiar senses rushed back to her.

Looking at Ophelia and Gullfaxi beside her, something seemed off. Why did their positions seem unchanged?

Ophelia and Gullfaxi's positions were exactly the same as she remembered, even their movements were identical. Suddenly, a terrifying possibility appeared in her mind.

With a thud, the sound of something landing came from the other side. Then, Ortlinde saw the giant tree, which had been just a small tree before, but now stood as tall as a giant tree in the Amazon.

The tree folded its branches, Ortlinde quickly picked up Bai Mo, who was now covered in blood. She looked back and saw a string of numbers written on Bai Mo's side.

777599.

"You liar! Gullfaxi, come here right now!"

The magnificent steed immediately came to its master's side, a hint of hesitation in its eyes. Ortlinde coldly commanded:

"Hurry up, do as I say!"

Gullfaxi activated the Magnetic Field Power, and 300,000 units of power flowed into Ortlinde's body. Her body immediately began to convulse, and she gritted her teeth, following her previous memories.

Magnetic Field Rotation -- Cellular Regeneration.

Bai Mo's body felt as if it had been parched but had received timely rain. His heart, under this power, almost instantly resumed its strong and powerful beating. A surge of vitality erupted, and his brain began to spontaneously mobilize its power, Asura Way to operate silently.

Bai Mo's body shuddered as if electrocuted, then he opened his eyes and saw Ortlinde, who was so anxious she was almost crying.

"Um... long time no see?"

With a thud, Ortlinde angrily rammed her head into Bai Mo, but unfortunately, Bai Mo was now in a state of numbness, both physically and mentally.

"Is this the agreed-upon allocation? Shouldn't you have written an 'eight'?"

"I just wanted to try it out. If it really has to be nine days, which is 777,600 seconds, wouldn't I just have to grit my teeth and endure it for one second? Who knew I'd end up being tortured in the mental world for nine days?"

Ortlinde was speechless at Bai Mo's astonishing wisdom; she was both angry and amused.

Seeing this, Mimir let out a long "Oh~"

"Indeed, only a second has passed outside. You're truly a genius, ten times smarter than Odin back then."

"It's not that bad."

"I wasn't praising you! Do you think the Well of Wisdom is stupid? How could such a thing be possible? You think you can just grit your teeth and get through it in a second? Odin would never have thought of this in his entire life."

Didn't I make myself perfectly clear? This was unavoidable. What was supposed to be a dual trial of body and mind has been transformed into a mental trial by you.

You should be thankful this thing only affects the mind; if it were just a momentary effect, you'd be in for a world of hurt!

But looking at Bai Mo, who was already able to stand up, Mimir couldn't help but sigh deeply. It seemed that what he said earlier was somewhat wrong; having a strong body was indeed very useful on the path of seeking wisdom.

Before he could finish speaking, both Bai Mo and Ortlinde felt a dizzying sensation, followed by a surge of dazzling runes. Countless Rune Runes, Bai Mo had indeed completed it.

Rune Runes fell to the ground. Ortlinde picked one up, and the mysteries of the Runes entered her mind. Bai Mo picked one up, but the Runes passed right through him, like a butterfly, piercing through his body, through Jormungandr's body, and flying outwards to land on the Daichi.