The whole Nightmare Castle began to tremble slightly.

It was as if a terrible beast that had been sleeping for 10,000 years was slowly waking up, and the entire interior of the castle was filled with a bloody and cruel tyrannical atmosphere.

Instead of lunging at Grim, the nightmare creatures that had been pouring in from all over the castle swooped down on Grim, but swarmed into a corner of the hall, where they converged into a gray soft-bodied monster. And as the nightmare creatures continued to merge, the gray monster continued to expand and expand, gradually filling every gap in the corner of the hall, and squeezing towards Grim's side.

"Drop, a fourth-order energy breath has been detected...... According to the preliminary judgment, this creature is a fourth-order primary!"

The hint of the chip in his mind made Grim's heart move slightly, only the second stage had already appeared at the beginning of the fourth-order nightmare creature, so how powerful would the subsequent stages be!

Grim didn't dare to let the other party grow up so unscrupulously, and with a smack of the witch staff in his hand, a golden flame swirled head-on with a terrifying high temperature.

The golden flamestream collided with the gray monster.

Immediately, there was a strange sound in the hall of sizzling flesh, and a pungent and unpleasant smell quickly diffused.

Squeak squeak......

The gray monster also seemed to feel pain, and began to twist and struggle frantically.

Its body was so swollen that it almost filled the hall space, so the slightest movement caused the castle to tremble and tremble.

The gray monster writhed wildly, throwing out clouds of snot-like liquid. As soon as the liquid landed on the ground, it slowly bulged and deformed, turning into one thing after another.

They wriggle their sticky, jelly-like gray bodies across the floor, spitting gray slime as they move closer to Grim.

Fortunately, Grim has a burning field to block enemies and a lava shield to protect himself, so he doesn't have to worry about such a large number of tiny creatures. However, their presence did prevent Grim from fighting the gray monster.

The Book of Darkness, held flat in Grim's right hand, began to flutter with his mind, and with each page jumped out of it a plague creature of the same ugly and hideous appearance. As soon as these death-defying servants landed, they rushed towards those 'ooze monsters' without hesitation.

When the two sides approached a certain distance, the bell-sized belly of the servant corpse immediately burst, and the terrible tide of plague and hundreds of bone fragments hit in all directions like a raging storm.

The gray ooze monster immediately turned purple, and even its movement and spitting acid became unusually sluggish.

The most terrifying thing about nightmare creatures is the desperation that comes with their attacks, which can induce strong negative reactions from their enemies. But unfortunately, the plague creatures are not flesh and blood creatures at all, and naturally there are no such so-called negative emotions.

However, plague creatures attack their enemies mainly by spreading plague viruses, and now they encounter nightmare creatures that also don't eat this set, and their attacks have become futile.

Neither other's special means are effective against the other, so when the two sides collide together, only bloody and murderous hand-to-hand combat remains!

One plague servant corpse after another pounced on it ferociously, either being spit into a sieve by the acid spit of the opponent, or swallowed into the stomach by a 'soft mud monster' and digested into a puddle of black liquid, or it exploded into a cloud of black smoke, staining the enemy with a layer of green plague spores......

With the middle of the hall as the battlefield, the plague creatures and the nightmare creatures fought inextricably, but they also stumbled Grim's footsteps in disguise.

Compared to the dire situation on Grim's side, Mary's side seems calm.

Perhaps it was Mary's special physique that caused trouble, but this nightmare castle did not show any malice towards her, but vaguely gave birth to a trace of soul resonance.

The message from Mary indicates that she has discovered the clue to the core of the soul of the Xlynns, and is groping deeper into the Nightmare Realm.

In this case, Grim gave up his intention to join her, and began to fight the nightmare creatures here wholeheartedly. As for the Kethlin, he was clearly in a deep sleep, using it to fuse the immense power gained by the Blood Sacrifice.

And the only thing Grim can do now is to attract all the enemy's eyes to him, giving Mary the possibility to dive into the depths of the Nightmare Realm.

Thinking of this, Grim immediately transformed without hesitation.

Furious crimson flames erupted from every pore of his body, forming a raging sea of flames around him. His body was hot and hot, and it began to swell and grow rapidly.

Molten Giant......

Since he advanced to the 4th rank, only by transforming into the form of a molten fire giant can he carry the surging pure flame energy in his body and the mysterious fire law!

It's okay for an ordinary human body to cope with a small scene, but once you want to fight with all your might, the flesh and blood body can't withstand the power of the powerful fire law at all. Before it could hurt the enemy, I am afraid that the law of fire has already melted Grim's own flesh and blood.

Of course, this also has something to do with Grim's lack of a complete and thorough grasp of the laws of fire. If he really made the law of fire a part of himself, how could fire hurt fire!

The Molten Flame Giant that Grim transformed into was twelve meters tall, which was not at all what the small castle hall in front of him could carry.

By the time his transformation was complete, the top of his head had reached the top of the hall. The terrifying flames swirling around them frantically licked the floor beneath their feet and the ceiling overhead, making them scorching and crackling, but not molten into liquid lava like they had done before.

After becoming a Molten Giant, many of the fire sorcery no longer require sorcery spells, like a racial ability that can be spawned at the slightest move.

Grim strode forward, and the flames around him swirled wildly outward, instantly bringing the entire hall into the scope of the Burning Realm. At the same time, an inexplicable heavy pressure came from all directions, colliding and entwining with Grim's spiritual consciousness, trying to press his overflowing power back into his body.

"Humph......"

Grim snorted, protected his body and mind with the Book of Darkness, and invested most of his spiritual power into the Vulcan Orb. Immediately, a torrent of violent and ferocious magical flames began to blow like a whirling hurricane to every corner of the hall.

The gray monster in front of Grim was immediately ravaged by the terrible flameflow!

What about Tier 4 Nightmare Creature Creatures!

Under the repeated blows of the two artifacts, the gray monster's body was scorched black, and its size became smaller and smaller. No amount of Nightmare Creature continues to merge into it, but it can't change its drastic shrinkage.

However, just as Grim was ramming the gray nightmare monster, a new hint popped into his mind.

"It's time!...... the third phase of the Nightmare Realm is about to begin"

As soon as the prompt fell, the situation in front of him changed strangely.

That Rank 4 Elementary Gray Plague Monster suddenly blew itself up!

The massive gray body exploded into a cloud of soft liquid, smeared every corner of the hall, and quickly melted into it.

In the next second, the entire Nightmare Castle was suddenly resurrected.

A dense gray bio-matrix spilled out of the floor, rock walls, and ceiling, and quickly blended together. For a moment, the entire hall, except for the area controlled by the Grim Burning Domain, was completely covered by this biological matrix.

They swelled and swelled, and their surfaces were covered in wet slime and wrinkled lines. From a distance, it looks like the intestinal wall and acidic solution of flesh and blood creatures.

And Grim is obviously the 'food' in their guts!

And in the corners and secret rooms of the castle that Grim couldn't see, fleshy cocoons that seemed to be built up with flesh and blood were rising and shrinking and rhythmically in a regular manner. Inside each cocoon, you can see some strangely shaped and strange creatures, and the embryos are floating in the miserable green liquid.

And when Grim's furious aura of fire raged inside the Nightmare Castle, the monsters in the cocoon bubbles couldn't help but go crazy.

Those who were already mature or close to maturity couldn't wait to tear open the membrane, burrow out of the cloudy pus and yellow juice, shake off their ugly and twisted bodies, raise their hideous heads, sniff with their noses, and immediately roared and threw themselves in the direction where the flame breath came from.

Standing in the middle of the hall, Grim, who was cleaning up these nasty flesh walls, raised his head and silently sensed it, and could clearly feel that the tyrannical aura in the environment was getting stronger and stronger.

And beyond the cruel and tyrannical atmosphere, a strange emotion that can debilitate the mind is growing in the depths of the heart. Just as the Law of Fire can generate flames without the help of any combustibles, this strange emotion can also break through the human psyche's defenses, plant the seeds of despair in the human psyche, and then grow little by little.

And the nourishment for its growth is all the negative emotions of the human mind!

This also means that in the realm of nightmares, as long as your heart is not completely cold, the other party can use the power of the law to provoke your negative emotions, so that your mind and spirit gradually sink into darkness.

There is only one law that can fight against one law!

The Book of Darkness in Grim's hand held up a light of law, barely keeping out the negative emotions blessed by the Nightmare Realm. But unconsciously, Grim's dark eyes gradually covered with a layer of dark red light, and his spiritual luster began to dim a little.

At this time, it was no longer ordinary nightmare creatures that were fighting with Grim, but this nightmare castle that was gradually recovering. As for those nightmare creatures that continue to attack with the help of the flesh wall, the individual level has also soared to the middle level of the 3rd order.

This makes it much more difficult for Grim, who has not recovered from a serious injury, to deal with it!