It's possible to practice magic this way, right?

"We also think we should go back first. The situation below may not be something we can handle."

The three dwarf brothers also agreed, and everyone started to walk back.

After taking two steps, they heard a series of clacking sounds. Everyone immediately became alert.

"Oh no, judging from the sound, it's a group of undead."

Countless skeletons appeared in front of the passage, and even the places not illuminated by the light were all glowing with blue soul fire. Lin Li even saw skeleton cavalry riding skeleton horses among the skeletons. The only good news was that there were not many ghosts.

"Retreat, retreat back to the hall." Bart shouted immediately.

Lin Li placed three rock walls directly on the ground in succession, and everyone took advantage of the opportunity to quickly retreat to the hall.

Tiechui said, "Go down to the second floor. There is no other way. Let's go quickly."

When everyone ran to the center of the hall, the swarm of undead had already broken through the rock wall and were about to pour into the hall.

Bart accelerated first and ran towards the second floor door. Lin Li turned around and threw two lightning balls. The lightning balls exploded in the group of undead. Lin Li didn't even look at the results of the battle. He ran directly towards the second floor door.

"Damn it, the door won't open." Bart roared.

The hammer roared, "Get out of the way, I'll break it open."

The hammer increased its speed and, using inertia, smashed the door with all its strength.

With a "boom", the door was broken, the hammer flew away, and the dwarf fell to the ground.

"My god, what is this door made of?" Tiechui quickly got up and ran to pick up his hammer.

"Hurry to the corner, we can't fight here." Lin Li shouted while throwing two more lightning balls.

Several bone arrows shot towards them, but were blocked by the twin dwarves' shields.

Lin Li placed another rock wall in front of them. Everyone finally reached the corner of the wall first, despite the bone arrows.

Lin Li shouted to Kira: "Make up two illumination scrolls."

Kira was frightened by the scene, and only reacted when Lin Li called him, and quickly used two lighting scrolls to illuminate the corner of the wall.

Lin Li used three physical enhancements on the dwarf brothers in one breath.

Bart shouted, "Dwarf brothers, defend with all your strength."

After shouting this, the Skeleton Cavalry had already crashed into the dwarf's shield.

Fortunately, the dwarfs were strong and withstood the impact. Bart took the opportunity to use a flaming slash to directly cut two skeleton horses, causing the skeleton soldiers on the horses to fall off. Ivan and Bernie also followed Bart's example and slashed directly at the horses. The 3 dwarves did not attack, but defended against the skeletons' attacks with all their strength.

Lin Li took a deep breath. He almost ran out of breath after casting a series of magic just now. Just like the body will feel tired instantly after performing high-intensity movements continuously in a short period of time. The same is true for the mind. Lin Li stepped back to relax and felt better.

But this was not the time to rest, Lin Li hid behind and began to chant a spell, and as the spell ended, a level 5 thundercloud explosion had formed at the top of the hall, and countless lightning bolts poured down in an instant, illuminating the entire hall.

The skeletons that had already rushed up were instantly cleared out, but the skeletons behind them immediately replenished them.

Kira's fireballs kept coming one after another, but the level 2 magic had only so much killing power.

Since the dwarves were standing in front to defend, Bard, Ivan, and Bernie could only attack from behind with long-range combat skills. Unfortunately, all three of them were using swords. They kept using long-range combat skills to attack, and just kept resisting the attacks of the skeleton soldiers. This lasted for a while, and the three of them were exhausted. They all changed from active attacks to passive counterattacks. Cooperating with the dwarves, the focus was on defense.

As a result, the only one who can attack normally now is Lin Li.

As for Kira?

"Brother, take the medicine. This is from the blue bottle. It will restore your mental strength. You have to hold on. Whether we can survive depends on you."

"Go aside and don't interfere with my spellcasting." Lin Li pushed Kira aside with his backhand, threw out another lightning ball with his other hand, and then began to chant the spell for the thundercloud explosion.

Skeletons fell to the ground again, and Lin Li took this opportunity to catch his breath. "You guys hold on for a while, I'll take a break." Lin Li couldn't remember how many thundercloud explosions he had released. It wasn't because he was too exhausted, but it was just that the mental fatigue of such high-intensity casting was a bit difficult to recover. But if he continued like this, he would be exhausted to death sooner or later.

Facing the skeletons, among the skills that Lin Li can use, only the level 4 lightning ball and the level 5 thundercloud explosion have the largest attack range and sufficient damage. Among them, the thundercloud explosion is the most effective. However, this is a level 5 thunder spell, and Lin Li originally belongs to the level-up casting, which consumes the spirit faster. Although the level 4 lightning ball can explode after hitting the first target, the range is still a bit small. As for the chain lightning, it can only hit 10, and the aurora movie can only hit one row. Although these magics are indeed powerful, they are still not effective enough in the face of the current battle.

It would be great if I could release the legendary magic Thunder Explosion. This magic could clear out all the skeletons in the hall.

Tiechui said: "These skeletons are endless. If we continue like this, we will surely die. The worst way to fight against the undead is a war of attrition. Never underestimate the number of the undead."

Bart took a step back and gave his place to Ivan. "I know that, but if we rush out now, we will die faster."

"Lin Li, do you have any ideas?"

Lin Li replied very straightforwardly: "No, the largest range attack I know is this thundercloud explosion. Facing the number of skeletons, it is of little use. I can only defend this corner."

"Or, let's charge." said Tiechui.

"We still have the energy to charge now, but if this continues we won't have the energy to charge later."

Bart glanced at the ghosts floating in the group of skeletons. Although there were not many of them, these ghosts had never participated in the battle from the beginning. It was unclear whether they were waiting for a chance to attack by surprise or waiting until they were exhausted.

But judging from the attitudes of these ghosts, they knew that the number of skeletons was definitely beyond their imagination. Moreover, the skeletons that had rushed over were all level 2 or 3 skeletons, and there must be level 4 or 5 undead waiting for them.

Tiechui went on to say, "There must be a commander behind this siege. We're all going to die anyway, so let's charge in and see if we can find the leader among the undead. If we can kill the leader directly, maybe we can even break out of this damn group of skeletons."

Bart thought for a moment and said, "Okay, let's charge. Tiechui and I will lead the way, and you two brothers will defend on the left and right. Ivan and Bernie will guard the rear. Lin Li, you will react as needed, and Kira, take care of yourself."

Lin Li shouted, "Wait a moment, I'll give you guys some protection."

Bart said, "You should save some of your mental power for the most critical moment. You have consumed the most in the battle so far, and have already exceeded the limit of an elite mage."