Tasia followed the direction of Xiao Chen's guidance and chose the west side of the stone path to advance. Xiao Chen also followed their direction, one of them was now on the ground and three of them were underground, but Tasia and the others only had to move along the stone path, but Xiao Chen had to climb over all kinds of obstacles, some houses, some gardens, and sometimes he had to bypass the enemy sentry posts, and even the camp where large groups of people gathered. Xiao Chen has always remained invisible, and at the same time, the flying technique he has applied to himself has tried to keep the distance between him and Tasia within a clear range of conversation.

"Wait a minute! we've met a door here!" said Tasia.

"Is the door blocking the way of the stone path?" Xiao Chen asked.

In front of them was a square stone door, completely blocking the stone path in front of them, and the door was rising from below, and you could see that there were gaps half a finger's width in the zenith and on both sides, allowing the magic lines that formed the circle to pass through, but people could not move forward.

"I'll try the hedron just now. Tasia took out the hedron that had opened the door and placed it on the stone door, but the circle on the door flickered and then dimmed again, "That hedron can't open this door." ”

"It's not surprising, it's supposed to be a blocking door to prevent enemies from running through these magic passages to those important places. The stone you stole may just be the key to certain areas. The Marquis de Bardini was supposed to have given the keys to the different districts to the person in charge of the corresponding position. Xiao Chen said.

"What can we do, do we need a detour? There have been several forks in the road, but we have been running west, and we have not explored those roads. Tasia said.

"I'm guessing those passages will have that kind of partition as well. I even suspect that this could be the node's defense. Maybe behind the door is the node we're looking for. Xiao Chen raised his head and carefully observed the surroundings, and found that this place was not far from the city wall, he bypassed a house in front of him, and saw that there was a faint pillar of light leading to the sky about a hundred meters in front of him, shooting directly at the shield in the air. The pillars of light and shield are connected together as if they were the pillars supporting the shield dome. The color of this pillar of light was very light, and its color was the same as that of the shield in the air, if it weren't for the fact that it was getting dark now, Xiao Chen would have run closer again. You won't notice it at all. The point of the pillar of light seemed to be behind the houses in front of it.

Xiao Chen said: "I seem to have found a suspicious node on the ground, not far from the edge of the city, and there is a pillar of light connected to the shield from the ground. Perhaps under this pillar of light is the place you are looking for. By the way, isn't Elaina good at negative energy magic? I remember there was a corrosive spell that had an effect similar to fossil to mud, and it could be used on that door?"

Elaine tapped on the door, and there was a dull sound. The door didn't seem very thick, and she said, "I'll try it." ”

Elaina's hand danced in the air, and then a dark purple ball of light appeared in her hand, and she pressed the ball of light against the door, and the stone snorted when it met the ball of light, as if some of the internal structures that made it up were cracking. But a few seconds later, a thin light curtain of light yellow suddenly lit up on the door, and the light curtain forcibly pushed out the negative energy released by Elaina, and only a dimple in the stone door was a centimeter deep, and then Elaina's magic could no longer hurt the stone door.

"The light yellow energy shield, can't reach the stone gate behind the shield?" Xiao Chen said after listening to Elaina's report, "I suspect that this is the same thing as the city shield outside, once someone harms the stone gate, the shield will be activated to protect the stone gate." ”

"We've tried several spells, but we haven't been able to break this shield, only the dispel spell will have some effect, but it will only weaken the shield slightly when the magic is released. I can't keep dispelling magic. Tasia said.

Xiao Chen said: "Let Xiaobai give it a try!"

Xiao Bai understood what Xiao Chen meant, and it flew in front of the stone gate, flying along the stone gate from top to bottom, as if feeling the distribution of magical energy. Eventually, it flew to the bottom of the stone gate, coiled itself in a circle, and attached it to the shield.

Both Tasia and Elaine felt a wave of magic, and Xiaobai's small body was like a black hole, not only absorbing the magic of the shields all over the door, but also cutting off the magic replenished from the ground.

Xiaobai shouted at Elaina, meaning to hurry up!

Elaine continued to cast her corrosive spell, and it took her about a minute to erode a fist-sized hole, and after cleaning the small hole of dust, she looked into the hole, which was a short passage. At the end of the passage was a room with a large magic circle on the ground, perhaps because it was protected by this stone door, and there were no people in the room behind the stone door. "I think we've found a place," she said. ”

Elaina continued to use corrosive magic to make holes in the doors, connecting them into a circle. But when she had made four or five holes, Xiaobai flew up from underneath, and as soon as it left, the shield of the stone gate returned, enveloping the whole door again, and Elaina had to stop.

At this time, Xiaobai flew like a drunk man who had been full of wine, flying staggering, it writhed in the air for a while, and then hiccuped, and a golden magic crystal popped out of its mouth. Tasia picks up the crystal from the ground and finds that it is a very good quality magic crystal. Slightly inputting spiritual power, a pale golden shield was actually opened in front of her, which was exactly the same as the shield on the door at this time.

"Oh my God, Xiaobai still has this ability, he can turn the absorbed energy into a magic crystal!"

"Master Kona told me that this is how Xiaobai can deal with the overflow energy after absorbing it. Xiao Chen said.

"Isn't it a crystal maker?" said Tasia.

"Don't you notice that Xiaobai looks very tired? This must be a very difficult thing for him. Elaine said.

Xiaobai nodded, it was obvious that its spirit was not just right. However, after spitting out the magic crystal, it was able to absorb the magic again, and it consciously coiled up again and stuck to the door.

Elaina and Xiaobai cooperated, and it took about half an hour to finally cut a circle with a diameter of less than one meter in the middle of the stone gate. Together, Elaine and Tasia pushed the stone slab that had fallen in the middle to the ground, and an entrance large enough for people to pass through appeared in front of them.

But just as they were about to drill in, a voice came from behind them: "You, who are you!"