"Huff~ Inhale~"

Inside the cave, Carl was wearing an underwater breathing mask, and was in water over 30 degrees, swimming back and forth.

The active fire element not only affects the surface temperature of the dungeon, but also makes the groundwater boil.

Even the interior of the giant mine cart has become like a steamer.

In order to prevent himself and Hope from getting heatstroke, Carl used the surplus leather and the last bit of Eberron dragon crystal to make two underwater breathing helmets.

Normally, the two of them would float in the water and swim until they were too tired, then they would return to the giant mine cart to eat and sleep.

This giant mine cart seems to be specially prepared for fire giants. Although the material is extremely resistant to high temperatures, it is not heat-insulating.

I think only the fire giant who has extremely high resistance to fire can use this thing.

After all, if this machine is really put into operation, the high temperature generated by the friction between the drill bit and the rock formation will definitely be transmitted to the inside of the machine.

Other giants probably wouldn't like the high temperatures.

"I don't know when these days will end."

According to the time it takes for various elemental planes to have an impact after arriving in the dungeon, the impact of the fire elemental plane will last at least half a month.

And since the day the groundwater became warm, only five days have passed.

Just as he was sighing like this, Hope's fiery red figure suddenly swam past Carl's sight.

Because it was too hot to exercise in the Giant Mine Car, the two simply ran into the water outside and exercised by swimming.

Although the water was also hot, it was at least cooler than in the Giant Mine Cart.

"Hey! Carl! Faster!"

Relying on his own attribute advantage, Hope swam in front and provoked Carl.

She's been enjoying doing this lately, whether it's training or anything else.

Although he felt that this behavior was a bit childish, Carl still swung his arms, chased after Hope, and suddenly rushed forward.

Carl added a metal buckle with a teleportation effect to the underwater breathing helmet, which allows the two to communicate in the water at a certain distance.

Carl actually doesn't know the 0-level spell of Teleportation, but the magic principles mastered by the Artificer are actually closer to the essence of magic than those of the Mage.

So even though he couldn't cast the corresponding spells, he was able to use the magic principles he knew and the structural characteristics of radio to create low-level props with corresponding functions.

Of course, due to the interference of magic, the communication range of this thing is limited.

But it's enough.

Like most barbarians with amazing explosive power, Hope's swimming speed slowed down after quickly creating some distance between him and Carl.

Carl maintained a relatively stable speed and slowly caught up with Hope in front of him.

"Today's training is about enough. If I continue swimming, I will be exhausted."

Seeing that Hope still wanted to swim forward, Carl quickly grabbed Hope's ankle to stop her next move.

Seeing Carl begging for mercy, Hope raised the corners of his mouth slightly and did not move forward.

It was as if she had finally regained the face she had lost in other things. She suddenly became "confident" from her original ordinary state.

"Do you need me to drag you back with my tail?"

As the voice sounded, Hope's tail was already wrapped around Carl's wrist.

The tail is slippery because of the water.

This forced Hope to wrap her tail tighter, so tight that her entire buttocks tightened.

"What a tiefling hip..."

Similar to Captain America's American butt, Tiefling's butt is also a relatively unique inherent impression.

Because they have to manipulate their tails, most tieflings, both men and women, have nearly perfect buttocks.

A similar condition is said to be present on the chest of a winged tiefling.

Gently sliding their arms, the two slowly moved forward in the water.

After opening the gate, the two returned to the mine car.

Without changing their clothes, the two walked into the cab wearing cool clothes similar to swimsuits.

As soon as Hope came in, he went to the side and started making bacon and mushroom soup, while Carl squatted in the corner of the cab, studying a trap door.

Just as Carl had imagined before, this mine cart has other areas.

Below this trapdoor in the cockpit is the staircase leading to the area below.

However, this thing is different from the lock outside, it is a purely mechanical structure.

Although Carl's psychic power allowed him to understand the structure of the lock, he was unable to push the mechanism to open the door.

In the past few days, Carl has been studying how to open it whenever he has time.

"The broth will be ready soon. Can we open it today?"

After preparing the rest of the meal, Hope walked over to Carl and bent over to look at him.

The swimsuit was made of several palm-sized pieces of leather and several thin leather belts, which were very figure-flattering. When Hope bent down, the belts were somewhat overwhelmed.

"It should be done in a few more steps. Pass me the wood over there."

Not far away, a wide and thick wooden board that had been processed many times was lying on the ground.

This is the key prop Carl uses to unlock the door.

Although the workmanship is rough, it can fit the mechanism in the keyhole.

The only problem was that the wood deformed during the rotation process, so the door lock was always just a little bit off.

"Hold on!"

Turning around, Hope picked up a piece of wood that was almost as big as himself.

Seeing that Karl was still squatting there studying, she directly used her Violence, and her body quickly grew larger.

Reaching out her hand, she pushed Karl away directly, then inserted the wooden key into the keyhole.

As always, the mechanism in the keyhole did not fit snugly into the correct position.

But at this moment, Hope punched the ground.

“Crack!”

There was a sound of a mechanism snapping together in the room, the keyhole turned, and the trapdoor popped up a crack.

Opening the trap door, a dark staircase extends downwards.

"The air in the tunnel is no different from that in the cockpit. It seems that the gas circulation system and the self-cleaning magic pattern are also etched in the area below."

Reaching out and scooping up a handful of air from below and sniffing it, Carl made a guess about the situation below.

Seeing this, Hope walked straight down.

The stairs spiraled downward, and when the two reached the bottom, a spacious corridor appeared in front of them.

There are several doors on both sides of the corridor, with runes etched on the sides of the doors.

After using his psychic power to sense his surroundings, Carl focused his eyes on a metal plate on the right.

As the psychic power was activated, lights came on in the corridor.

"Is this the giant's living area?"

"It looks like it. This is the dormitory, this is the utility room, this is the storage room, and this is the kitchen...it's quite complete!"

Hope's eyes lit up when he heard the word dormitory.

During this time, the two of them had been sleeping on the floor of the cockpit. Although Hope had long been accustomed to sleeping on the ground or even in trees, she also wanted to try the feeling of sleeping on a soft bed.

(End of this chapter)