Another day passed, and the purple crystal man continued to grow as he continued to sink. He had grown into a middle-aged man, and then suddenly drilled rapidly downwards.

Seeing this, Simon and another dragon knight hurriedly followed closely.

After chasing each other like this for about ten minutes, they suddenly felt as if they had passed through a thin veil, and the scene before their eyes changed instantly.

A vast underground world suddenly appeared before the two dragons, and underneath was a city made of amethyst.

All I saw were the purple crystal people coming and going in the city, moving in an orderly manner in this area.

However, something unexpected happened, and sharp alarms sounded in every corner of the city in an instant.

Then, five purple crystal figures riding giant beasts galloped towards Simon and the other dragon rider. Simon wondered, "How did we get discovered? Did we reveal our whereabouts when we passed through the veil?"

Before they had time to think carefully, five crystal men riding on giant crystal beasts had already rushed up with great momentum.

Simon and another dragon knight were not afraid at all and went straight to meet the enemy head-on. The two sides engaged in battle in an instant.

However, these five behemoth knights were obviously no match for the two dragon knights.

In just a few rounds, one of the beast knights was smashed to pieces, and then another followed suit.

The remaining purple crystal people sat on the head of the giant beast, screaming excitedly, pointing at Simon and the others while shouting, then turned around and tried to escape.

But how could Simon and the others easily let go of the remaining three crystal beast knights? They immediately rode their dragons and chased after them.

Seeing the Crystal Behemoth Knight fleeing into the city, Simon and another dragon knight immediately became alert.

They knew that the cities in their own dimension all had defense mechanisms, so there was no reason why Crystal City wouldn't have one either.

So, Simon signaled the dragon to sit down and blew a breath of dragon's breath towards the city below.

In an instant, a stream of hot dragon breath poured down like a torrent.

At the same time, a purple light shot out from inside the city and collided precisely with the dragon's breath.

Not only that, at some point, more than fifty crystal-shaped tubes suddenly appeared below.

As the energy was charged, more than fifty tubes simultaneously emitted purple energy beams, shooting towards the two dragon knights like dense arrows.

On the walls of the Crystal City, densely packed crystal people pointed at the dragon knight who was dodging in the air, and shouted from time to time.

Although Simon and the others didn't understand what they were saying, they could guess from their tone and expression that it was not a good thing.

Simon and another dragon knight nimbly dodged the energy beams that kept shooting at them while communicating in low voices.

Soon, the two reached a consensus.

Simon was riding the giant dragon and rushing towards the group of crystal people below like an arrow.

The other dragon knight kept breathing out dragon breath, forming a fiery barrier in the air, trying his best to block the attack directed at Simon.

Simon continued to shorten the distance between himself and the city wall. Just as he was about to approach the wall, a purple energy curtain flashing with mysterious light suddenly appeared and stretched across in front of him.

Simon tried to launch several attacks, but found that this layer of energy light curtain was extremely strong and could not be broken at all. His face instantly became very ugly.

Simon immediately concentrated all his divine power and poured it into the giant dragon beneath him.

With the help of powerful divine power, the dragon fought hard and barely managed to break a small hole in the purple energy curtain.

William, who was standing by, was quick-eyed and quick-handed. He spotted the crystal people dressed in gorgeous clothes, saw the right moment, grabbed one of them, and did it in one go. He then quickly withdrew.

At the same time, he took out two bottles of sleeping potion and poured them all on the crystal man's face.

In an instant, the crystal man stopped struggling.

William placed the crystal man, who had lost the ability to resist, on the dragon's back, and then rode the dragon upwards.

Seeing Simon succeed, the other dragon knight also hurriedly flew towards him, wanting to meet up with him and provide cover for him so that they could evacuate together.

After all, the purpose of their trip has been achieved, and there is really no need to stay here and take risks any longer.

After the two successfully reunited, they cooperated with each other under the attack of dense purple energy beams, rushed towards the crystal above, and finally successfully immersed themselves in it.

The purple crystal people below saw this and screamed in anger, raising their hands and pointing angrily at the crystals above. The three-headed crystal beast knight looked hesitant, clearly reluctant to give chase.

At this time, a crystal man who was also dressed in luxurious clothes appeared and talked a lot to the three beast knights.

The Crystal Beast Knights endured it silently, not daring to refute at all.

Seeing how timid they were, the crystal man in luxurious clothes became even more angry, and purple saliva splashed on the faces of the three beast knights, but they didn't even dare to wipe it off.

After a while, the crystal man was so angry that he turned around and left angrily. It seemed that he was going to find someone to complain.

After the crystal man in luxurious clothes left, the three crystal beast knights' tense nerves slowly relaxed and they breathed a sigh of relief.

They first took back the core from the heart of the crystal beast, and in an instant, the originally majestic crystal beast disappeared.

Immediately afterwards, the three figures turned and walked deep into the city, eventually disappearing into the city.

William and Simon looked at the unconscious purple crystal man in front of them, looked at each other, and a hint of irrepressible joy flashed in their eyes at the same time.

The most urgent task was to return to the camp as quickly as possible. Without any delay, the two of them immediately urged the dragon to speed up and fly towards the ground.

However, the complex environment made up of crystals all around greatly hindered their progress.

If it weren't for these obstacles, at their speed, they would reach the ground in a few minutes.

An hour later, the two finally emerged from the ground riding the dragon.

But after coming out, they found that the place they were in was not the high ground where the legion was stationed, but an unfamiliar crystal basin.

They looked at each other, completely confused about their location and which direction to go to get back to the camp. Were they lost?

Fortunately, the color of the crystal here is still purple, if it were any other color, we would be doomed.

The two of them paused for a while and each drank a dozen recovery potions to relieve their tired bodies.

Their dragon companion also enjoyed some meat and water, and then rested on the spot. Half an hour passed in a flash, and the two, having almost recovered, patted the dragon and called on its companion to set off to find a camp.

Before leaving, Simon poured two more coma potions on the face of the unconscious purple crystal man to ensure that he would always be in a coma and would not wake up and self-destruct.