"It's just a house for miscellaneous items, it's always locked, my mother never let us near it before, I suspect there's something really wrong with it." Yun Ruoyue said.

Ling'er nodded in agreement, "Well, but we don't have the key, we can't open this lock, what should we do?" ”

"I have a way." After Yun Ruoyue finished speaking, as soon as her divine sense moved, she took out a bottle of magic acid from the medical system.

This magic acid, like aqua regia, can corrode things.

But its effect is a hundred times that of aqua regia.

It's a chemical substance, and they used it when they used to study drugs, so they had it in the hospital.

This magic acid is a highly corrosive solution, when its concentration is particularly strong, it will be very corrosive, can corrode any substance such as gold, silver, iron, etc., but it only reacts to alloy compounds, not proteins.

In other words, this magic acid can corrode things like spoons and iron locks, but it will not corrode the flesh and will not harm the human body.

Therefore, Yun Ruoyue was very relieved to take out a small bottle of magic acid from the cold storage of the medical system.

When Ling'er and Jiu'er saw the bottle of magic acid, both of them looked puzzled, "Sister, what are you?" How come I haven't seen it? ”

"This is magic acid, a potion I developed myself to corrode gold, silver and iron, you see." After Yun Ruoyue finished speaking, she opened the magic acid and poured a little on the handle of the iron lock, only to see that in an instant, the handle was slowly corroded.

In less than twenty seconds, the lock handle was corroded and broken, and Yun Ruoyue pulled the lock off with a twist of her hand.

This scene made Ling'er and Jiu'er look surprised.

mark(“zhong“);

"Sister, this magic acid is too powerful, you are so powerful, you will corrode this lock all of a sudden, let's go in and have a look." Ling'er said.

Yun Ruoyue nodded, threw the lock to the ground, and then gently pushed the door open and looked into the room.

But when she opened the door, she saw a room full of tables and benches with broken legs, and some old furniture, which was covered with dust, and the corners of the walls were full of cobwebs, and it looked like a utility room where no one lived.

Ling'er and Jiu'er also came over, and when the two saw these sundries, they were also stunned.

"Eldest sister, why is there only sundries and nothing in here? But I really heard the sound last time, is it that the ghost won't come out until night? Ling'er said with a frightened face.

At this moment, on the opposite wall, there was a sudden rush knocking on the door, urgent, it was a very panicked shout, this shout was indistinct, babbling, it sounded like a female voice.

In this knock on the door, there is also the sound of chains colliding, the sound is rattling, and there is a cold echo, which is very terrifying.

Ling'er was so frightened that she hugged Yun Ruoyue tightly, "Sister, did you hear that?" It's this voice, it's so scary, where did this come from, there are no ghosts in this daylight, right? ”

Yun Ruoyue was also startled by this sound, she found that the sound came from the opposite wall, so she clenched the stick in her hand, and walked towards the wall step by step.

As she walked, she boldly asked, "Who's in there?" Is it a human being or is someone pretending to be a ghost? Come out for me! ”

She really didn't believe that there were ghosts in this world.

Who knew that as soon as she finished speaking, the sound of the knocking on the door became more urgent and stronger, like a talisman.

The sound of banging on the door with the sound of chains and clanging made them creepy to hear.