"This is ......" Looking at the old and rusty black iron gate in front of her, Lutha raised her hood and whispered, "It must be the entrance to the ruins, right?"

"It's really under this spring. Placing his hand on the hilt of his sword, the knight frowned: "About four meters high and two meters wide...... Enough for two of those monsters to rush in side by side. ”

"Someone must have opened the trap door to let the monster in. With a look of great regret, the elf muttered, "No point of blame...... But if Lusa had followed closely at that time, she probably wouldn't have made so much effort to find the entrance to the ruins. ”

"Hmm. Hanging her head guiltily, Lusa suddenly felt a little frustrated.

"I've just said it again, but I can't help but say it again - why don't you guys know that there are ruins after living here for so long?" the knight frowned, and the mad dog coughed heavily, glancing at Denor: "It's a secret, but it's right under your feet! ”

"W-How would I know this? Patting his head in embarrassment, Deirno hurriedly turned around and ran towards the entrance: "You wait for me! I'll send someone to report to the Cold Snow Castle, and I'll be back in a while." ”

I always feel that Mr. Deleno is more capable than before...... Looking at the back of the departing adjutant in the firelight, Lusa just felt a little admiration, but Deenor tripped and fell to the ground in the next second.

"Damn, why can't this thing walk steadily?" Squinted at Derno, who hurriedly got up and crawled away, Seresa kicked the door: "It's locked." Let's smash the door open and take a look. ”

"No, we'll wait for him to bring someone in with us. It's safe to do so. Stopping the mad dog, the knight looked at the elf who kept tapping on the door with his knuckles, and asked strangely, "What are you doing?"

"Check the next year and material. It's probably a few thousand years ago, and it's made of black steel. After stopping the tapping, Cyberdart showed a thoughtful expression: "The door panel near the center is obviously much less gray, indicating that it has been used recently." ”

"Black steel is so rust-proof?" twitching her nose and sniffing the door panel, Cereya showed a strange expression: "Hmm? There seems to be some special smell...... It's a little fishy, probably bloody. ”

"Your nose is so good, why can't I smell it?" also tried to sniff, and my sister showed the same strange expression: "Since your nose is so good and you say you can smell it, then maybe it is true." But where is the blood?"

"How do I know? It's supposed to stick here. Approaching the handle of the gate, the mad dog looked at it carefully for a long time: "It's strange." I can smell it here, but I don't ...... Although the taste is a bit faint. ”

"Could it be the blood of that giant beast?" staring at the black steel door, the knight was silent for a moment: "The blood of the corruptor is black, and it may not be visible after being stained. ”

"That can't be. There will always be traces. Coughing, Seresa sniffed the smell again and said slowly, "No problem, it's definitely from this door." ”

"Maybe it's not black steel. Scratching the door with a knife, the elf showed the scraped iron powder to everyone: "It's just close to the color of black steel...... If so, it's probably some kind of blood-sucking metal. ”

"Makes sense. After saying this, the mad dog kicked the door panel hard. It was firmly fixed in place, unmoved. After hitting his body hard for a long time without reacting, he shouted angrily: "Guladan, you come!"

Roaring excitedly, the stone demon stepped forward and slammed the door several times. However, no matter how loud the impact was, it had no intention of turning on.

"There's no keyhole, there's no place to put the disc. Taking out the parry dagger, Mad Dog leisurely took off the glove in his left hand and pushed away the elf on the side: "Then you can only try it with blood." ”

"Brother, use mine, right?" Hurriedly stopping the mad dog, Lusa said incoherently: "I'm Aya, and I'm recovering from my injuries quickly......"

"You can't, Aiya's blood is not the same as normal blood. Touching Lusa's head, Seresa gently pushed her away, slashing the dagger diagonally across her palm. After a slight "click", blood slowly flowed out and slid down his wrist.

"Damn, it looks like there's too much blood. Frowning, Mad Dog's face distorted slightly. Stretching out the blood-red left hand and grasping the doorknob tightly, the blood flowing out was attracted by some unknown gravitational force, and seeped into the doorknob.

"That's right, it's the smell of blood. Bringing his nose closer to the black door, which was not stained with blood, Mad Dog sniffed carefully. Surprised by the astonishment, the elf couldn't help but sigh, "This is a very rare Netherworld Iron...... It absorbs blood and continuously strengthens its hardness. It's like Anusen's shield is made of the same material. ”

"Damn, I don't care what he is. After kicking the door, the mad dog pulled his left hand and looked at it angrily: "No response at all! Who knows if there is not enough blood or if it needs another way to open?"

"Anyway, just stop hurting yourself. After snatching the dagger from the mad dog, which looked like it was about to stab itself, the knight shoved it back into the scabbard around the mad dog's waist and looked at the door with great doubt: "Since it is Nether Iron, it can explain why it is not rusty." With the vampire perk, you may be able to make some clever traps to control the opening of the gate. ”

"If there is a requirement for the amount of bleeding, there should be blood on the ground. Looking at the very neat rocky floor, the elf's expression fell into confusion again: "But it didn't stay...... Doesn't that mean you need a lot of blood?"

"Assuming the mechanism corresponds to the doorknob, then that's all we can do with that monster. Shaking his hand, Mad Dog glanced at the grip: "That's the size of a palm." It can hold the doorknob completely, we can't. ”

"That's easy. Blocking her sister behind her, Lucina said proudly, "We can make everyone cut their palms and grab the handles together." ”

"It's stupid to listen to. Blowing the scars on his palms that were still bleeding, Mad Dog glanced at the cuffs that had been stained with blood: "And even if you draw deeper, the amount of blood sucked by each part of the handle may not be enough." ”

"What then?" Licking the corners of her mouth, her sister looked at her arm and worried: "Why don't you ...... Or do we have to cut the arteries, pour the blood on Guladan's hand and let him hold it? Maybe this one is smarter, and our blood is good?"