The phoenix flew away along the water pipe.

Facing Felix's puzzled gaze, Dumbledore explained: "Fox is too weak now, it can't take the three of us. If Harry is in danger, as long as he really seeks help, Fox will sense his place."

At this time, a cold voice came from outside the door, "Sorry, I think it's four people." Professor Snape appeared, wearing a dark green pajama, his hair was fluffy and messy, and he was slightly panting.

"Severus," Dumbledore looked at him, "you are here too."

"How could I not come, Potter...the life of a Hogwarts student is under threat!" Snape had a bad temper. "What are we waiting for? Do you want to have a party here?"

"That's right, Severus." Dumbledore seemed to realize suddenly, and he glanced at the four people present, "Miss Granger..."

"I want to go down!" Hermione said quickly, "I won't drag you down, I can, um..."

She saw the schoolbag in the corner, her eyes lit up, she ran over and flipped through it, and finally found a magic scroll.

"Principal, professor, this is Harry's scroll, which records some of the pronunciations of the Snake accents, which I think may be useful."

"Is this?" Dumbledore showed a surprised expression and looked at Felix.

"We mentioned..." Felix said implicitly, and the principal understood it.

"Very good, Granger," Dumbledore praised.

Hermione tried her best to prevent herself from showing complacency.

Dumbledore touched her shoulder with her wand, and she felt herself floating lightly and floated up from the ground with a little force.

Then, the three of them each cast a floating curse on themselves, "Are you ready?" Dumbledore received a positive answer. He waved his wand, and the four of them flew into the dark water pipes like light soap bubbles.

Next, there was a long underground slide. Felix was uncertain whether it was five kilometers or ten kilometers. The tunnel was winding, twisting and twisting, and sometimes it would descend spiral in a spiral manner.

With the help of the magical glimmer, Felix could see the inner wall of the slide with sticky, wet liquid, and many tubes split toward all sides.

Finally, the slide along the way downwards became horizontal. They came to a circular open space, with water piled up on it, and above it were countless pale rat bones.

At this moment, they were standing on a huge pile of skeletons.

The tunnel is as silent as a grave.

Dumbledore looked around with a serious expression, a place he never knew, and he whispered: "The huge project... It seems that Slytherin spent quite a lot of time on it."

The four walked towards the largest tunnel entrance, and Felix saw a coiled behemoth.

"Close your eyes!" he shouted quickly.

Hermione closed her eyes obediently, and Dumbledore and Snape pulled out their wands while closing their eyes.

Following the feeling, Felix waved a blazing red light, and the spell as thick as his wrist hit the giant's body roughly, making a dull roar.

At the same time, there was an extremely hidden sound of wind - this was Snape's curse.

Dumbledore also took action, and he blessed a shallow golden shield to the four of them.

Waiting for a moment, there was no anticipated hissing and the movement of the basilisk.

Felix opened his eyes and the behemoth had broken into pieces, but there was no smell of blood.

He and Snape stepped forward and found that it was a huge snakeskin, green and bright, but the surface was stained with dust, which looked gray-green and gray-green.

"The Basilk is at least twenty feet long - plus," Felix said, "a great cutting spell, Professor Snape."

Snape said to him, "You are not bad either, Felix, your 'drowsy' effect is comparable to the bursting spell."

Hermione and Dumbledore came close, and Hermione carefully looked at the remains of the snake shed. One third was blown into pieces - this was the trace of Professor Hayp's magic, and the remaining part was cut in half, with smooth and flat cuts, obviously some powerful cutting magic.

The little witch picked up a snake shed, which was hard, like a piece of metal, and she couldn't help but smack her tongue in her heart.

Dumbledore carefully looked at the skin of the snake monster, "It's been a while, maybe it was the last time the secret room was opened."

At this moment, a crisp phoenix sound came from afar.

"We need to speed up." Dumbledore took the lead.

They turned one bend after another, stepping on the wet water under their feet, making a click-and-click sound. Hermione felt her feet sticky, her nerves trembled uncomfortable, just wanting to end it as soon as possible.

Finally, they encountered a solid wall with a circular iron door embedded in it. This arrangement looked a bit like the circular door of the Gryffindor common room, but there was no picture on it, but seven entwined snakes, whose eyes were inlaid with large, shiny emeralds. The snake tails intersected, the snake heads spread out, completely closing the entrance.

"Obviously, we need entry instructions or forcibly sabotage," Felix said.

Snape waved his wand, and under the invisible cutting spell, the iron switch burst out with bright green fluorescence. When everything came to peace, the circular iron door was intact.

Dumbledore stroked his fingers at the twisted snake on the iron door, and he shook his head, "I can break it, but that takes time." He looked at Felix.

Felix took out the scroll knowingly and threw it high. The magic scroll quickly spread out and spread out to a length of seven or eight meters.

His wand was on it, and he whispered, "Open." The handwriting on the magic scroll began to twist, deform, and recombinate, and soon a vortex appeared in the center of the scroll.

The four people present heard a weird, "hissing" sound from the magic scroll.

The next moment, the circular iron gate moved, and a smaller snake swam out from the intersection of the snake's tail. It swam around the iron gate for a while, and then with a "click", the door opened.

"Professor, is this?" Hermione was a little curious. She didn't know that the magic scroll had this function.

"It can transform my words into a snake accent, of course, provided that it stores enough snake language information inside."

Dumbledore said with a look of admiration: "This is the point you mentioned and I during the interview, combining Muggle wisdom with magic?"

Snape and Hermione's eyes fell on him at the same time.

Felix said calmly, "Just one attempt."

"Felix," said Dumbledore, "there are not many open-minded wizards like you."

Then several people continued to advance and crossed the circular iron gate. In front of them was a long, dimly lit space. The space was shaped like a hammer, and the hammer handle was the spacious aisle in front of them. There were many stone pillars carved with coiled snakes on both sides of the aisle.

These stone pillars tower high to support the high places, and the dark ceiling casts long and bizarre shadows under the green light.

At the end of the space is an open open space, like a square hammer head. The edge of the space is a statue of the same height as the room itself, tightly against the dark wall behind it.

Felix almost recognized the statue of Slytherin at a glance, and he had seen similar things in many books.

His eyes fell on the clearings, where a fierce battle was taking place.

A blind snake monster twisted his body wildly. It was thirty feet long. Every time it swung its body, it would cause a large rain of stones, and a little wizard hid in a mess.
Chapter completed!