After completing the transportation work, under Powell's order, the entire Shining Mission became busy again.
Hundreds of people followed the traces of the mist formation and searched outside.
The workload can be said to be quite large, because this is a giant magic circle with a diameter of more than ten kilometers.
Finally, after working hard for a long time, someone finally discovered the clue.
A holy knight came to Powell's side and said respectfully: "Master Deputy Captain, come and see, we have found a strange tree."
Chris was always with Powell, and there was no need for him in this complicated work.
"Let's go take a look."
Chris and Powell took the holy knight through the air and arrived at their destination about four or five minutes later.
It was a vast forest located in the lower middle part of Crescent Island.
At this moment, five or six people were gathered in front of a big tree.
The height of the tree is about thirty meters. The leaves are dark green and very dense. The crown of the tree is open like a big umbrella, and the trunk is as thick as a dozen people hugging each other.
Powell stepped forward and asked, "Is there anything unusual?"
From the outside, there is nothing different about this tree.
"Deputy Commander, look." A knight tapped the tree trunk with the back of his hand.
Accompanied by the crisp sound of "dong dong", it means that it is hollow inside.
"What are you doing standing there? Let's cut it open with a knife and take a look." As he said that, Powell pulled out his rusty iron sword and stabbed the tree trunk.
To everyone's surprise, the tree was so hard that even a ninth-level expert's weapon could not penetrate it, but was blocked.
Powell was slightly stunned. He injected fighting energy into the rusty sword and prepared for a second attack.
"Wait a minute!" Chris stopped him quickly.
Powell asked in confusion: "What's wrong?"
Chris explained: "I felt very faint magic fluctuations from above. It is estimated that this is not opened by physical means. If you want to use brute force to crack it, the entrance will probably be completely sealed."
Powell asked eagerly: "What do you think we should do?"
The gate leading to the Black Dragon Palace branch base was right in front of him, which made him a little anxious.
Chris took out Dragon Roar and knocked on the big tree, allowing the magic power to flow into the sword.
Soon, the tree reacted.
A small magic circle appeared on the trunk of the tree. It was emerald green and looked a bit like a door.
Powell said with an ugly face: "If we have to activate this magic circle to find the entrance to the sub-base, I'm afraid we will never be able to get in."
Generally speaking, only the corresponding magic wave can open the magic door, just like a key and a lock.
Not only did they fail to catch anyone alive, but they also don't know black magic, so there is no way they can successfully open it.
Chris also had a headache. Although he had found the entrance, whether he could open it was another matter.
Someone suggested: "Deputy Captain, how about we use the old method and continue digging? Maybe by digging a few dozen meters, we can find the wall outside the sub-base, break it open and get in."
"
This was the method used before, and the entire Holy Knights dug up the land on Crescent Island.
"No need." Chris shook his head.
Powell asked curiously: "Do you have any idea?"
Chris said: "This Crescent Island is far away from the mainland, and very few humans come here, so their original intention of designing it is not to guard against outsiders like us, but only to prevent the creatures on the island from accidentally entering."
"So, opening the magic door is not that complicated. At least it must ensure that every black magician can enter easily."
The Black Dragon Palace wants to maintain the island's ecology and prevent people from discovering the anomalies on Crescent Island, so the animals in the forest cannot be eradicated.
"Fireball!" Chris started to take action. He hit a fireball into the magic door on the tree trunk.
"Bang!"
The fireball collapsed and turned into red light that spread outward.
But, nothing happened.
"Thunder Technique!"
Chris continued to attack, using the most basic magic.
"Crack."
When an arc as thick as an arm fell on the magic door, something special happened.
A ray of emerald green light and shadow is projected from the tree trunk and falls to the ground to form a circle with a diameter of more than ten meters, rotating clockwise.
Powell turned to the nearby holy knights and said, "You guys stay here and don't move around. Chris and I will go in and take a look."
These people around me are only at the sixth level. If they continue to follow, they will probably be held back.
Those holy knights agreed very wisely: "I understand, Mr. Deputy Captain."
Chris smiled faintly, took a few steps forward, and entered the circle.
Powell followed closely behind, and as the two of them entered the circle, a strange halo enveloped their bodies.
A strong falling feeling came over me, like falling from a high altitude.
Chris took three deep breaths to calm down the tension in his heart, while Powell next to him jumped into the air.
It was their first experience, so they were a little uncomfortable.
Chris had taken the Onisuji version of the elevator, so he was familiar with this feeling of falling, but as the deputy leader of the Holy Knights, Powell's behavior was like this, which surprised Chris.
Fortunately, both of them were strong men and quickly adjusted their condition.
The scenery in front of them changed rapidly, first turning into a void of blackness, and then they appeared in a passage.
Based on the time of landing, Chris speculated that this sub-base was not simply built tens of meters underground.
Obviously, Black Dragon Palace has put a lot of effort into this.
The passage in front of you is quite spacious, stretching for more than ten meters on both sides, and even a large truck can easily pass through it.
On the walls on both sides, a goose egg-sized gemstone is inlaid every two or three meters, shining brightly and illuminating the surrounding area.
Powell said softly: "Be careful, I don't know if there is any high-end combat power of the Black Dragon Palace here."
Even a ninth-level expert will have to bear a heavy price if he is secretly attacked by an enemy.
Chris looked at Powell with a smirk, and his body gradually became transparent until it disappeared.
He used invisibility magic.
"Damn!" Powell was speechless. In this way, only he would be exposed to the enemy's sight.
"Let's go." Chris's voice came from the side, making people vaguely discern his location.
The two of them walked forward quietly, making no sound of footsteps as they walked.
The length of this secret passage is only about a hundred meters, and there are some magic materials piled up along the way.
Chris picked it up and looked at it, and found that it was just ordinary things like gravel and toner, which can be easily bought in the market.
They continued walking along the passage, and there were three forks ahead.