The Lesser Earth Sand Elemental appeared fully formed outside the dungeon core crystal, as its appearance resembles the figure 'Sandman'.

Going along with the naming sequence decided beforehand, he named the newly summoned Lesser Earth Sand Elemental 'Drei'.

❕ System Notification [You have successfully named the Lesser Earth Sand Elemental, Drei.]

A warm light then envelopes the newly named Lesser Earth Sand Elemental Drei, as its base stats increase because of the stats modifier after becoming a named dungeon monster. 

After naming the Lesser Earth Sand Elemental, Allen felt his energy drained.

DP Remaining: 0 (27) DP

He opens up his dungeon interface menu to check his remaining dungeon points, "After summoning the third Earth Elemental, I'm nearly almost out of dungeon points." 

Despite still having some mana left within his mana pool, he is brung about the side effects of mana exhaustion. Though, the negative effects were to a lesser extent, feeling slightly feverish and a bit of a headache. It's nothing that Allen has ever felt before. He's used to it already.

Allen commanded the newly summoned Lesser Earth Sand Elemental Drei, "Drei! Go and help your brothers Einz and Zwei with the excavation of the dungeon core room." 

Allen thought suddenly crossed his mind, as he then issued a secondary order, "If possible, I want you to clear the earth rubble caused by those two diggings. Understood?"

He issued the command, not sure if Drei would follow up on the secondary objective.

Drei, the Lesser Earth Sand Elemental nodded its head, showcasing its intelligence, that it is able to understand his words and follow his given instructions.

Allen was slightly surprised and amused, "Well, that was interesting." He commented.

Walter: You really should not underestimate the intelligence of an earth elemental.

Walter, the dungeon core a.i instigated a conversation, which seems to catch his interest. So Allen continues, "Oh, how so..."

Walter: Well, that is because the earth elemental race is essentially Immortal. They never age or essentially grow old by human standards. 

However, their intellect will increase with age. Some old elementals could even converse perfectly in human language.

Allen found the lecture to be interesting, but not at all surprising, "Well, that's not something that I've heard before, like in every reincarnation fantasy novels that I've read." He said it so sarcastically that it is difficult to tell whether he is taunting or just making a joke out of it.

Nevertheless, Drei, the Lesser Earth Sand Elemental immediately went to work, as its sandy body stumbles over. Some of its grains of sand then fall off from its main body, but later then regroups.

Drei, the Lesser Earth Sand Elemental approaches one of the large piles of earth rubble, made by the two Lesser Earth Rock Elemental Einz and Zwei excavating.

Drei, the Lesser Earth Sand Elemental stretches its arms out, its droopy lumps of sand for arms looming over the large piles of rubble.

With a single thought, the Lesser Earth Sand Elemental Drei drops its arms down. The pile of sand that which made up its body, then merges with the pile of earth rubble, like a vacuum, Drei began sucking up the large piles of earth rubble into its own body.

Allen having observed what was going on from a distance, having become interested in what Drei was doing.

So he asked Walter, the dungeon core a.i, "So what is it doing?"

Walter: It's doing what it is told by clearing up the earth rubble as you instructed.

Walter, the dungeon core a.i answered Allen's inquiry, but Allen wasn't satisfied with the answer here was given.

"I don't mean that. I already know what it is doing." He said.

"I mean why is it just simply absorbing the rocks and stone into its body. Don't Earth Elementals usually just attached piles of rock together to form a more solid limb." Allen stated, making a simple point from his reasoning.

Walter: Usually what you are saying is correct for most of the Earth Elemental races. However, you fail to include the structural difference between the bodies between the two Earth Elemental races.

Whilst, one is made of solid stone and rock, and the other one is made from tiny grains of sand.

Upon hearing Walter's explanation, Allen immediately came to a reasonable understanding, "I see... So is it breaking down the rock and stone within its body and turning it into the sand."

Walter: Well, actually no. From the looks of it, it seems to be restructuring its own body.

Walter, the dungeon core a.i formed a hypothesis based on his observation and the data he collected previously.

Allen was quite confused, "Reconstructing its body... for what reason." He contemplated for a minute, but could not find the reason for whatever it is doing.

Walter: Just watch and see. You will eventually find out.

Walter, the dungeon core a.i just told him to be quiet, in a more polite way. Just sit back and observe the live specimen as it underwent an unbelievable transformation.

Drei's body was like sinking quicksand, as the pile of earth rubble is drawn towards the center of the sinkhole.

The earth elemental core hidden withinside the Lesser Earth Sand Elemental Drei's body began to rotate at extreme speeds, with the hard rock and stone gradually accumulated at the top and center of the mini tornado. The dirt and numerous grains of sand trapped by the rotational force underneath the mini tornado.

Within seconds, Drei, the Lesser Earth Sand Elemental underwent an unbelievable transformation. 

The simple hard rocks and stone began to attach themselves, layer by layer, a solid lump of mismatched rock then forms. Two humanoid arms, with functional five fingers; each of better maneuverability and quality than the two Lesser Earth Rock Elementals.

However, the sturdiness is reduced to compensate for dexterity, with patches of sand trapped withinside the spaces of rock, for easy connectivity and separation.

The top half of the Lesser Earth Sand Elemental Drei now strongly resembles the other two Lesser Earth Rock Elementals Einz and Zwei.

However, it's lower body torso is that of a Sand Elemental. An accumulation of sand and dirt, as it moves around by shifting the sand and dirt in the lower half towards a certain direction.

With the amount of stone and earth rubble accumulated by the two Lesser Earth Rock Elementals Einz and Zwei's digging, Drei's body has grown increasing from 2 to 3 meters in height. Now towering above the two in both height and size.

Ti-ring!

The sound of a bell ringing inside his head, as notification panel appeared floating before his eyes. 

❕ System Notification [The individual Lesser Earth Sand Elemental Drei has forcefully changed its race. It has become Lesser Earth Sandy Rock Elemental Drei.] Walter: How interesting...

Walter, the dungeon core a.i found the new discovery to be quite interesting.

Allen was certainly amazed by Drei's sudden unbelievable transformation, "This is certainly interesting, but what causes it to become like this."

Walter: From my hypothesis, I think the cause of Drei's transformation was by your influence.

Allen repeated the last few lines of words he just heard, "My influence. What sort of influence do you mean?" Confused, he asked Walter, the dungeon core a.i what he just meant.

Walter: From my observation, the cause of the Lesser Earth Sand Elemental Drei's transformation is caused by your influence.

You told it to follow Einz and Zwei's example, right? And start excavation with the dungeon core room, right?

Walter, the dungeon core a.i stated, and Allen agrees with him.

"Yeah."

Walter: You've also told it if it was possible if you could get rid of the earth rubble caused by those two diggings in order to expand the dungeon core room.

Allen nervously scratches the back of his head, "I guess, I did say that."

Walter: So here comes my serious explanation. You are seriously estimating the thinking capabilities of a Lesser Earth Elemental. Though their intelligence is not that great, it is simple enough to follow simple instructions.

Walter, the dungeon core a.i stated as he continues on with the explanation.

Walter: You've instructed it to follow Einz and Zwei's example and start digging, but what you didn't know was that its hands were too soft and not rigid enough to dig and perform on the same level like its brethren. Its body is made of sand, its punches barely did any damages to a solid stone wall. So it can't perform the task that it was given. However, a chance was given to it when it first saw the large piles of earth rubble before it. It must have thought, 'If my body was not up to the task, then I will remake so that I am able to do it...'

"Ah, now I see. All of that sort of made sense now." He exclaimed, and thanked Walter, the dungeon core a.i for the explanation. "Thank you for the explanation. I understand it now."

With the last few remaining dungeon points within his arsenal, Allen spent it all on buying a few patches of dungeon moss and spreading it out, by placing a few in the corners of the room.

❕ System Notification [You have purchased 5 × patches of Dungeon Moss. 25 DP is consumed.]

Once the patches of dungeon moss are purchased and placed upon a solid surface, small green patches of fauna began to appear.

Greenery and life began to fill the once empty and desolate cave room.

Walter: Oh, I forgot to mention something important about the dungeon moss that is commonly grown in dungeons. Once it becomes saturated with mana, it will begin to emit a faint radiance of light. It's kind of like a light source, but at the same time, the brightness is comparable to a night light at best.

After Allen spend up all of the remaining mana he has left, thereby converting it into dungeon points to be used in the summoning. 

He felt all his mana leaving him, and entering the dungeon core crystal.

An unweary feeling of tiredness then assaults him, as he then falls flat on the ground tired and exhausted. He is assaulted by the repercussions of mana exhaustion.

Allen grumbles as he felt extremely exhausted, "I'm tired." He complains.

Walter: Then you should practice meditation then, it should ease the symptoms of mana exhaustion and as well increase the rate mana recovery.

Walter, the dungeon core a.i suggested the idea of Allen practicing meditation in order to speed up his mana recovery.

Allen gives in to the idea, as he got up from his spot and started getting into a lotus position.

One hand placed on top of one another, sitting crosslegged, as he started practicing meditation first hand.

By closing his eyes, he erased all visible distractions. However, that doesn't deter the noise created by the three earth elementals Einz, Zwei, and Drei from working.

A simple breathing exercise as Allen inhales in through his nose and exhale through his mouth. He continues the breathing exercises until the repetitive inhalation and exhalations became a splendid continuous cycle. 

After the twenty-fourth breathing cycle. He heard a beep ringing inside his head.

Ti-ring!

❕ System Notification [Your skill proficiency has reached a designated degree. The skill Basic Breathing Excercise Lv.1 has been acquired.] [Basic Breathing Excercise Lv.1] This skill reduces the effects of stress and mental exhaustion on the body but also increases the rate of the user recovering mana. 1% increase in mana recovery.

After recovering a significant amount of mana points where the effects of mana exhaustion have subsided, Allen finally opened his eyes up.

He was immediately greeted with a blue screen panel, 'It would seem that I've gained a new skill from it all...' He thought to himself.

"Interesting." He exclaimed.