Chapter 569: Elastic Ball

The rolling stone mechanism is an extremely classic thing. Both elves and dwarves like to use it. Many mages who build wizard towers or underground palaces also like it very much.

He even liked it so much that he developed a spell called 'Boulder Trap', which summons a boulder to hit the enemy's head.

If it can be matched with the terrain, it will be a surefire success.

Now, Aldai and the others knew why this passage was completely straight. It was simply to facilitate the rolling stone trap.

In fact, the drows had already discovered this trap, but they did not dismantle it. Instead, they repaired it.

After all, the drow regard this area as a temporary stronghold, and it would be nice to have traps to protect it. Anyway, for the drow, they will definitely not be stupid enough to step on a trap they already know about.

Zhuoer probably wouldn't have thought that the spider they released would actually step on it.

Putting aside this, after crushing the sword spider, the rolling stone obviously moved in the direction of Aldai and the others, and became faster and faster.

"spread!"

Zola picked up Aldai and Nemea, and the three of them jumped towards the edge of the passage. The huge rolling stone flew past behind them with a loud rumbling sound.

Fortunately, this passage is wide enough, and there is still room on both sides to avoid rolling rocks.

The people behind them must be wild bear mercenaries. The three people who escaped from the rolling stone thought that the thing would hit the wild bear mercenary's face. However, when they looked back, they found that they had not lifted the sword barrier yet. Zola was obviously high. He estimated the abilities of the wild bear mercenaries.

Normally it would be a good thing, but now...

The rolling stone rushed over and hit the blade barrier head-on. The blade barrier was like a wood chipper. A large number of force field blades continued to rotate, leaving eye-catching wounds on the rolling stone.

The force of the rotation actually bounced the rolling stone back!

There was no other way, so the three of them had no choice but to continue squatting where they were, listening to the rumble of rolling stones passing by behind them.

And something even more devastating happened.

When the rolling stone hit the spider group at the other end of the channel, it made a series of crunching sounds like crushing and shelling. As the speed decreased, it actually rolled back.

Li Chengqi, who was watching the show on the other side of the screen, was like, what the hell kind of bouncy ball is this?

In fact, it is because this channel is higher at one end and lower at the other, but it is not obvious by visual inspection.

The rolling stone will of course roll in a lower direction, but there is a blade barrier released by Zora on the lower side, which will instead cause the rolling stone to bounce higher.

The result is like a bouncy marble, jumping sideways repeatedly.

At least while the blade barrier is in effect, the rolling stone will definitely bounce back again, and Zola is too far away from the blade barrier now. Even if he wants to release the spell he releases, he has to get closer.

But the rolling stone doesn't give you a chance to get close, it goes up and down in the channel.

No, we have to find another way.

Putting aside the question of how long it would last, the rolling stone bounced across the passage repeatedly like a marble. It did not hit Aldai and the other three simply because the passage was relatively wide and there were places to hide on both sides.

But if this rolling stone touches the edge when it comes back, Aldai and the other three will have nowhere to hide.

At this moment, Zola was suddenly stunned and shouted:

"Praise your Majesty!"

Not knowing what happened to her, she immediately picked up Aldai and Nemea, and ran to the other side of the passage as fast as two bags of rice. When the rolling stone fell back and hadn't bounced back, she kicked them. Kick on a slightly different colored brick on the wall.

The brick was pressed down with brute force and did not rebound. At the same time, the sound of a loudspeaker running came from the wall, and a crack opened in the flat wall, telling you that it was actually a movable door panel.

Although in this demiplane, Li Chengqi could not fully open the map and guide Aldai where to go as before, but the traps within his field of vision could be highlighted with the alt key.

This secret door was not on the map given by Yueluo. I don’t know if Zhuoer noticed it, but Li Chengqi noticed it at a glance.

Almost at the same time as the secret door opened, the rolling stone struck again from behind. Just as feared before, this time it rushed over against the wall.

Zola quickly carried the person in and could even feel the strong wind brought by the rolling stones sweeping over her heels, almost knocking her out.

Of course there was no light inside the secret door, and Zola was anxious when she came in. One of them couldn't stand still, and the three of them fell down at the same time, but they didn't fall to the ground.

The three of them felt as if they had fallen into a trapezoidal container, and the space was not small.

Just when they were wondering what it was, they immediately felt that the container they entered seemed to be moving!

"Lighting Technique!"

Even dark vision was still not clear enough in a completely lightless environment. A ball of light immediately lit up above Aldai's head.

Under the illumination of the white magic light of the soft command, they saw clearly that what they had plunged in was actually a mine cart.

The movement they felt was actually because the three people stepped in and gave the minecart an initial speed, causing it to move along the rails.

And on the other side of the tracks...

The tracks disappeared a meter or so ahead.

Or to be more precise, the slope is too steep and the track is laid downward beyond the field of view.

"Jump down quickly! This mine cart..."

"ah!"

"Which one is the brake?"

The minecart carried the three people to the slope, and went down with a whoosh under the influence of gravity, just like a roller coaster that climbed to the highest point and then dived directly.

In the dark environment, it was impossible to see where the track led to. It seemed that the mine cart was heading towards an endless abyss. The adrenaline surge brought by the acceleration made the three people's shouts a little out of tune.

Nimia's voice even had a bit of crying.

——Maybe she regretted coming with Oldie...

–------

If the elves were once the pinnacle of magic civilization, then the dwarves were the pinnacle of mechanical creations.

In the dwarf mines, a large number of track lines were as complex as spider webs. Under the skilled dispatch of the dwarves, no mistakes were made, and ore or personnel were quickly transported in and out.

But there is a characteristic of the dwarfs' creations. They never consider comfort...

It's OK to be usable and easy to use. What's the point of a bicycle?

The empty underground space made people wonder if they had returned to the surface unknowingly. A huge rift appeared in the center of this underground space.

About ten to twenty meters high, giant lamp mushrooms emitting orange-yellow phosphorescence dotted both sides of the abyss, slightly illuminating the surrounding space.

Near the abyss, there are still things left by the dwarves, such as pickaxes, shovels, rotten ropes, some pulleys, etc.

In the past, the dwarves would use these tools to descend to the rock wall of the rift and mine the ore veins above.

Some are gems, some are gold, and some are precious metals that are more valuable than the entire ruins, such as fine gold or mithril.

It's just that it is now abandoned, and there is no trace of its former prosperity. The footsteps of countless dwarves echoed here, but now there is only deathly silence.

At this time, a creaking sound, the sound of the machine being oiled broke the silence.

The most ordinary dwarf mine cart slowly slowed down along the rails, and finally hit the wooden stakes at the end of the track to absorb the impact.

"Is Ping, Ping'an stopped?"

"I don't know, I'm dizzy."

"I want to lie down for a while..."

The three girls in it felt that their brains were almost shaken...