The massive stone door was easily pushed open by Dan Feng with just one hand.
From the opened gap, a surge of cold air suddenly rushed out—as if they were standing in the snowy fields of the Ranoa Kingdom.
This cold was exceptionally piercing, forming a stark contrast with the temperatures of the upper floors and causing one to shiver involuntarily.
Roxy, standing beside Dan Feng, immediately felt this abnormal chill.
Her body trembled slightly, and a wave of coldness began climbing up from her calves.
Seeing this, she quickly opened her storage scroll and took out her spare magician's robe.
This robe was specially prepared by her for extreme cold weather and had excellent warmth retention.
Roxy swiftly put on the magician's robe, and her body, which had been assaulted by the cold, instantly felt a trace of warmth.
However, she didn't forget Dan Feng. She took out a male-style magician's robe from the storage scroll and handed it to him.
"Here, put this on. It's too cold here," Roxy said with concern.
Dan Feng looked at the robe Roxy was offering him, and a warm current surged in his heart.
He knew Roxy was worried about him, but he felt he didn't need this robe.
"No need. This level of cold doesn't affect me," Dan Feng refused with a smile.
Hearing this, Roxy recalled how Dan Feng's body never shivered even in snow—he seemed to possess extraordinary resistance to cold.
So she nodded and put the male magician's robe back into the storage scroll.
Afterward, Dan Feng led Roxy as they walked through the stone door together.
Under the illumination of the Spirit of Light, they could only see thick cold air permeating the surroundings. These chills were like a layer of white dense fog, completely obscuring the view around them.
Only when the Spirit of Light flew to a certain spot would the scene there become clearly visible to them.
"The visibility on this fourth floor is still affected," Roxy observed everything around her and said slowly.
"Let's keep moving forward." With that, Dan Feng led Roxy deeper into the fourth floor, following the light emitted by the Spirit of Light.
The farther they went, the more intense the cold became—this cold was not normal.
Seeing this, Dan Feng immediately mobilized the power within his body and slowly applied his Imaginary Energy toward Roxy.
This instantly made Roxy, who had been feeling cold, no longer fear the severe chill.
"Dan Feng, what did you do? Why do I suddenly not feel cold anymore?" Roxy asked in surprise when she discovered the surrounding cold air had vanished. She immediately guessed it was Dan Feng's doing—after all, there were only the two of them here.
And right after Roxy finished speaking, Dan Feng slowly came to a stop.
Seeing Dan Feng halt, Roxy curiously raised her head to see what could have made him stop.
Then she witnessed a very rare sight.
"Ghosts!" Roxy looked at the ghosts floating in the air with a face full of shock.
To her, ghosts had always existed only in books. Now seeing them with her own eyes, she realized they matched the descriptions in the books perfectly—possessing illusory and transparent bodies.
The moment Roxy let out that exclamation, the ghosts seemed to have received some command. Their forms suddenly began to change.
Their originally blurry outlines gradually sharpened, actually transforming into the appearance of human ghosts.
Immediately after, these ghosts began moving slowly toward Dan Feng and Roxy as if drawn by something.
As everyone knows, ghost magic beasts are an extremely special type of existence. Other attack magic has no effect on them—only Divine Strike magic can inflict damage.
Unfortunately, neither Dan Feng nor Roxy was very proficient in Divine Strike magic.
Dan Feng had never learned Divine Strike magic, and Roxy's Divine Strike magic was only at the beginner level.
After all, ghost magic beasts were far too rare. Their numbers in this world were pitifully small, so people's understanding of them was also very limited.
However, Roxy did not back down because of this.
With a shout, she shouted: "Exorcism!" As the shout rang out, her staff suddenly burst with dazzling golden light.
This was beginner-level Divine Strike magic. Though its power was limited, it still had a certain suppressive effect against ghosts and undead.
When this beam of golden light shone upon the group of ghosts, they ignited like dry grass set ablaze—flames instantly roaring up and engulfing them.
The ghosts let out painful shrieks, their bodies struggling within the flames, yet unable to escape this terrifying burning that was horrifying to them.
"Huh? Beginner-level Divine Strike magic actually has such a significant effect?" Roxy couldn't help feeling somewhat surprised. Originally she hadn't held high expectations for this beginner magic, but now it seemed its power far exceeded her imagination.
Still, the surprise lasted only a moment. Roxy quickly regained her composure and immediately ignited even greater fighting spirit.
She raised her staff and continuously poured mana into the beginner Divine Strike magic, making that golden light even more radiant and eye-catching.
On the other side, Dan Feng focused entirely on controlling the Heavy Abyss Pearl.
He infused his vast Imaginary Energy into the Heavy Abyss Pearl. In an instant, the black-and-white Heavy Abyss Pearl seemed to awaken—suddenly bursting with golden radiance several times brighter than Roxy's Divine Strike magic, as scorching as the sun.
Immediately after, a golden ring rapidly expanded outward with the Heavy Abyss Pearl at its center, spreading across the entire area filled with ghosts like ripples on water.
Any ghost touched by this ring instantly turned to nothingness, vanishing without a trace.
"Imaginary Energy really is omnipotent," Dan Feng secretly marveled in his heart.
He recalled seeing a comment in short videos in his previous life: "Imaginary Energy is omnipotent."
Now experiencing it personally, he truly understood the meaning of those words.
Roxy looked at the golden light on her staff, then at the Heavy Abyss Pearl floating in the air—its golden radiance was on a completely different level.
She let out a helpless sigh and once again marveled inwardly at Dan Feng's strength. Decisively, she put away her beginner Divine Strike magic and decided to let Dan Feng handle the exorcism alone.
After all, judging by the situation, she wasn't needed.
She secretly resolved that when she returned to the Holy Country of Millis, she would definitely buy a magic book related to Divine Strike magic.
The Divine Strike magic of the Holy Country of Millis was famously used almost exclusively by Millis believers, mainly for prayer.
"There are actually so many ghosts here!" Roxy stood beside Dan Feng, watching the endless stream of ghosts approaching the golden light of the Heavy Abyss Pearl, and sighed in admiration.