A rumbling thunder woke William from his sleep.

As a result of resting against the wall for too long, one leg lacked blood circulation and became unconscious.

He had no choice but to stand up with difficulty against the rock wall, limped to the mouth of the cave, and watched the raindrops the size of beans hit the rock in front of him, and his heart sank.

From morning to now, he had eaten a mouthful of food in the morning, and a piece of frog chocolate, and now his stomach began to protest again after he woke up.

Touching his rumbling belly, William looked at the rain-soaked rocks in front of him as he took out the signal amplifier from his backpack on the ground.

The shell of this signal amplifier is composed of two parts, and the top is a plastic chassis cover, because the signal receiver is to be embedded, so William chose ABS resin to make it with a 3D machine.

Underneath is an iron chassis that not only functions as an antenna, but also conducts heat well to the outside.

Looking at the signal amplifier in his hand, William could only reluctantly destroy it, as long as he removed the upper cover and took out the circuit board and other parts inside, he could use the chassis to collect rainwater.

If you don't have food, you can put up with it, but if you don't have water, your body will become dehydrated, which is a very serious problem.

Because he didn't have a screwdriver or other tools with him, William had to lift the signal amplifier high above his head, top up, and then slam it to the ground.

In one or two blows, he fell three times before breaking the ABS cover on the signal amplifier.

He took out the spirit key inside, picked up the twisted and deformed chassis, and the corners of his mouth rose slightly a few degrees.

The tools to solve the drinking water problem are here!

While the torrential rain had not stopped, he would carefully place the chassis outside the mouth of the cave. Listen to the soybean-sized rain falling into the chassis, making a thumping sound.

William smiled, but not for long. Because he understands that as long as he doesn't solve the food problem, his life will still be in danger.

If you are an adult and spend the night in this dark and damp cave on this stormy night, you may only experience mild symptoms such as low-grade fever and malaise.

But William is now an 11-year-old child, and his hunger has made him exhausted now, and if he stays one more night, he will probably die of hypothermia.

Hypothermia refers to the fact that the body's heat loss is greater than the heat supply, resulting in a decrease in the temperature of the body's core area, and symptoms such as chills, cardiopulmonary failure, and even death.

Thinking of this, William decided that he couldn't sit still, he wanted to save himself.

Finally reborn into this gorgeous and colorful magical world, the dream has not yet come true, and he doesn't want to die like this.

"The case cover is made of ABS resin, and the circuit board is polyester, which is not much, but it can be used to make a fire. By the way, and my backpack... Wait, let me see what else I have in my bag to use as fuel. ”

Emptying out the contents of his backpack in one go, William gathered together all the items that could be used as fuel.

A notebook, a pencil, a signal receiver, three £10 denominations, the incriminating backpack and the photograph of the young William, were the only six items that could be used as fuel.

There wasn't much stuff, but it was just a small flame that could last for hours.

William glanced at the case that had been filled with rain, then put the items scattered on the ground back into his backpack, holding the case in both hands, and slowly groped his way into the cavern.

"If the British government knew that I burned pounds, it wouldn't have punished me. This is also an emergency avoidance. ”

After using the lithium battery in the signal amplifier to short-circuit a piece of pounds made of cotton and linen fibers, William looked at the warm fire in his hand, and sighed bitterly.

Taking advantage of the burning flame in his hand, William hurriedly placed it on a piece of ABS resin so that the flame could burn steadily.

Now William regrets that he didn't take off the maniac wizard's coat and destroy the corpse.

It was a woolen coat, enough for William to survive the night.

"By the way, if the magic element bullet hits the rock wall, will it melt the rock wall into magma?"

Taking a sip of the "fresh" rainwater, William took out the Hex pistol hidden in his waist, carefully stroked the metallic body, and he had a bold idea.

Wow!

"Huh?"

I don't know how long it was, but William, who was about to fall asleep, suddenly heard faint footsteps in the cave. William hurriedly leaned down, his ears pressed against the ground, and heard the footsteps getting louder and louder, only then did he confirm that it was not his auditory hallucination.

"Who's going to be here? Voldemort? Or..."

Whether it's a human or something else, it's a mixed bag for William.

In order to avoid being discovered by the other party at the first time, William quickly extinguished the fire on the ground, and then waited for the other party to arrive with a Hex pistol in his hand.

Wow!

The footsteps came to an abrupt halt when they came to William's side. William knew that the other party must have discovered him, but he couldn't see the other party, and a sense of fear arose in his heart.

As William struggled to find the intruder, a glow rose from a meter in front of him, illuminating the entire cavern.

"A Muggle kid in distress, tsk. Does Kreacher want to make him a funeral offering? ”

The bright fluorescence almost blinded William's eyes, and he covered his eyes with his hands, leaving a thin slit so that he could see the other party's figure clearly.

Short, thin frame, gray skin, large triangular ears that drooped to the shoulders, a disproportionately fat pointed nose, and a pair of Muggle-disgusting eyes.

Before his twelfth birthday, William finally met the house-elves, a race unique to this world.

'Kreacher, why is he here?' Is it because of his master? ’

Kreacher is a house-elf of the pure-blood wizard family of the wizarding world, the Black family.

As a pure-blood house-elf, Kreacher also hated Muggles, Muggle-born wizards, and half-blood wizards just like his old master.

As for why Kreacher came here, William deduced from his words that he was probably here to pay homage to the dead little master, Regulus Black. Harry's godfather, Sirius Black's younger brother.

William clearly remembered that Regulus brought Kreacher to the cave in order to destroy Voldemort's Horcruxes, and he couldn't bear to suffer Kreacher again, so he drank the potion in the stone basin and exchanged the fake Slytherin locket for Voldemort's Horcruxes.

While enduring the piercing pain of the potion, he accidentally fell into the black lake and was dragged by the corpse. Knowing that he would not survive, Regulus ordered the Kreacher gang to destroy Voldemort's Horcruxes at the last moment of his life......