Rhodes tried to search around the walls, but found nothing related to the formation of the illusionary walls.

Realizing this, Rhodes realized that the wall in front of him was clearly cast by a powerful spellcaster. Unless a caster of the same rank breaks it, this wall of illusion will last for a long time.

After confirming this, Rhodes seemed to think of something, and then he didn't bother with the wall behind him, but walked back into the passage.

Back in the hall where the centaur caster was originally fighting, it was already filled with a large number of ordinary centaur corpses.

When Rhodes was searching for loot, the rest of the undead creatures under his control followed the instructions in the spirit imprint and transported all the surrounding corpses to this space for Rhodes to transform.

As Rod lifted his hand, the energy of death gathered in the space. It didn't take long for the corpses to be transformed into centaur undead.

At this time, the undead creatures that Rhodes had originally controlled rushed forward one after another to fight these newly transformed undead creatures.

The undead creatures can easily tell whether they are controlled by the spirit mark or not, and for the other undead creatures, they will also not show mercy to the undead creatures controlled by the spirit mark, and suddenly, the two undead creatures began to fight quickly.

In the process, Rhodes focused on selecting a few undead creatures. With the control of the spirit imprint, many undead creatures took the initiative to give up resistance and were killed by the rest of the undead creatures, while Rhodes took advantage of the vacancy of the spirit attribute to control some other undead creatures.

It didn't take long for the battle to end quickly, and if it weren't for Rhodes' failure to let his undead creatures go all out in order to pick the right centaur undead, the battle would have ended much sooner.

At this time, almost all of these centaur undead controlled by Rhode were second-order creatures, and in the previous battle, the third-order centaur undead were sent away by Rhodes on his own initiative.

The reason why Rod did this was naturally to prepare for the next plan.

By checking the location of the illusion wall again, another thought appeared in Rhodes's mind, that is, the wall here should also be related to the Elven Spring. Perhaps the location of the Elven Fountain was also obscured by such a wall, so it has not been discovered.

Through the previous questioning of the Centaur Spellcaster, it had mentioned the special location of this place several times, and as a result, Rhodes came up with the idea.

To test this idea, Rhodes needs to have his centaur undead search.

In terms of combat ability, due to the obvious difference in rank, even if these centaur undead swarmed up, they may not be the opponent of the centaur leader, so Rhodes does not value the combat ability of these centaur undead, but focuses on their number.

This is also why, Rhodes took the initiative to replace the third-order centaur undead under his command with a larger number of second-order undead.

After all this, under Rhodes' control, the centaur leader was able to control the undead creatures under Rhodes' command through the cognate spirit seal.

At this time, the centaur leader took the undead creatures around him and began to search the inside of the cave, and the main process of searching was to check the surrounding walls to see if there were any anomalies around.

Due to the simple perception of the inability to detect any anomalies at all, under the signal of Rod, the centaur leader controlled these undead creatures, closely searched every wall around them, and even directly put his hand on the wall to move.

For these ordinary centaur undead, since they do not possess much intelligence, it is difficult for them to detect anomalies without the control of the centaur leader, but relying on their own search.

Rhodes knew that the interior of the cave was extremely complicated. Although Rhodes did not delve into it to investigate, through a series of previous searches, Rhodes found that the deeper he went, the more such forks in the road, although the number of centaur undead under his command increased, it was difficult to detect anomalies in a short period of time.

Taking advantage of this opportunity, Rhodes can just meditate to improve his strength, but before meditating, Rhodes still needs to deal with some things.

Following the path he had come, Rhodes came to the outside of the cave. As soon as he walked out of the cave, Rhodes saw the bone dragon at the entrance of the cave. At this time, according to Rod's instructions, the bone dragon remained on the ground.

What Rhodes has to deal with is the whereabouts of the bone dragon. It takes a lot of time to search the inside of the cave or to meditate, and before that can happen, Rhodes must place the bone dragon.

Due to the side of the bone dragon, a large amount of death energy will be emitted at all times. Any creature in the vicinity will perceive an anomaly here, and this is clearly not what Rhodes wants to see.

For Rod, although his strength has improved a lot, but in the face of the real strong, there is still a danger of death, if there is a powerful spellcaster, feel the concentration of death energy here, choose to come here to find out, then Rod has no choice but to flee.

What's more, in the process of meditation, Rod didn't want to be disturbed. Due to the long time of the search, Rhodes chose to engage in deep meditation, and once the process of deep meditation was interrupted, Rhodes would suffer some backlash.

Therefore, Rhodes needed to keep the bone dragon hidden, or at least not to release the energy of death just like that.

At Rhodes' signal, the bone dragon suddenly took action. I saw the bone dragon swing its claws towards the location of the cave, and a large number of rocks flew in all directions, making a loud sound.

Rhodes knew that before the war, a large area here was the residence of the Silva clan, which meant that there would be no gathering place for other creatures in this vicinity, although the bone dragon made a loud noise at this time, but Rhodes was not worried.

Due to the habits of the centaur race, they will hardly have any interaction with other races except during wartime, so even if Rhodes kills all the centaurs here, as long as they are well hidden, the news will not leak out for a while.

It didn't take long for the bone dragon to make a huge hole in the surrounding mountain wall, and a large number of rocks were scattered around the cave.

Rhodes knew that the strength of the bone dragon's whole body was extremely huge, and so far, the bone dragon could be said to be the strongest undead creature under his control, and the rest of the undead creatures were completely incomparable.

As the bone dragon widened the entrance to the cave, its entire body eventually entered it.

In this way, the death energy on the bone dragon's body was covered up a lot.