Due to the fact that this death energy appeared far away from the airship, and the extremely short time it appeared, among the mages that existed around, in addition to Eli, there were only a few other high-level mages who sensed this.

Through the abundant death energy that appeared beneath the airship, Eli realized that Rhodes must have successfully escaped from the airship with the undead creatures he had summoned.

For the other mages who couldn't perceive this, they still kept their eyes on the clouds beneath the airship.

Due to the obscuration of the clouds, these mages did not know Rod's condition at this time, and just wanted to find Rod's figure from the clouds in this way, but obviously, for Rod, whose figure had long since disappeared, their actions were just in vain.

The experience of fighting a necromancer in the past gave Eli enough experience. The moment he felt this death energy appear, Eli realized that the undead creatures controlled by Rhodes were extremely high-level, even surpassing many mages above the airship.

According to the intensity of the death energy emitted by Rhodes when he took off the pendant, Eli realized that the appearance of this undead creature was also in line with the level of Rhodes' spiritualism.

There are very few undead creatures that can reach this level. Due to the limitations of the undead creatures themselves, the corresponding rank of these creatures before their death largely determines the highest level they can reach during the transformation process.

In Eli's perception, this energy of death appeared extremely quickly and without any warning. Even Eli, who was extremely powerful, didn't notice the appearance of this death energy until Rhodes jumped off the airship.

When this death energy appeared briefly and coincided with the death energy released by Rod, it immediately disappeared, and no mage could perceive the changes after this death energy.

Due to the presence of a large number of clouds underneath the airship, the mage was also unable to find Rod's figure in the clouds, and for a while, Rod's trace disappeared completely.

What puzzled Eli was that the way this death energy appeared was very different from the way the undead creatures he remembered releasing death energy.

His knowledge of necromancers had made Eli understand that among the undead creatures controlled by necromancers, the more powerful the undead creatures, the richer the death energy it released.

In Eli's perception, the presence of undead creatures will have a great impact on the magical elements that exist in the surrounding space, and the more powerful mages perceive this, the more they can detect anomalies.

Due to the particularity of the death energy, the traces left by the undead creatures are extremely obvious, and it is difficult for any undead creatures that exist to change this.

In the magic guild, the way to determine whether there is a necromancer is also through perception, to check whether there is any residual death energy affecting the surrounding space.

However, these methods used to judge regular necromancers did not apply to Rod, which couldn't help but make Eli feel a little abnormal.

In Eli's perception, there was obviously a powerful undead creature underneath the airship, but there was no trace of any residual death energy. These death energies, which were supposed to overflow in the surrounding space, were all absorbed by the undead creature.

Recalling the death energy emitted by this undead creature before, although it only appeared for a very short moment, through some abnormalities in the perception, Eli could roughly guess what kind of undead creature it was.

The way Rod left was beyond Eli's expectations, and when Rod left, Eli didn't have any regrets. Even if the artifact part was taken away by Rhodes, Eli did not show any regret, on the contrary, this look appeared on many mages next to him.

Even if the two have different positions, Eli can't help but admire the way Rod chose to leave.

Eli had already guessed that the undead creatures that Rhodes had controlled and lurked beneath the airship should be the most special ghost dragon among the undead creatures.

Among the undead creatures, there are not a few undead creatures that can fly, as long as the corpses that are transformed into undead creatures can fly before they are alive, and they will still have this ability after being transformed into undead creatures.

Even some creatures that were originally unable to fly have the ability to float in the air after being processed by the necromancer.

The ability of these undead creatures to float may not be anything compared to the actual ability to fly, to the extent that they can actually fly in the air. But compared to the rest of the undead creatures, this ability also has its own unique features.

Although there are a large number of undead creatures that can fly, Eli did not hesitate to confirm the type of undead creatures that Rhodes controlled under the airship.

What attracted Eli even more than the ability to fly was the ability of the undead creature to hide its own breath.

Very few undead creatures are capable of this ability. Similar to this special ability, only a sufficiently powerful undead creature can have it.

Generally speaking, this special ability only exists in some powerful corpse witches, and Eli has never seen an undead creature possess this ability among the undead creatures he has encountered in the past.

For the rest of the mages on the airship, even if they felt the appearance of this death energy, they couldn't be sure what kind of undead creatures existed here, but Eli was clearly different.

Through the previous records of necromancers, in Eli's memory, among the creatures created by necromancers, a very special undead creature has the ability to fly and hide its own death energy at the same time, and this creature is the top of the creatures created by necromancers, that is, ghost dragons.

Eli knew that he was able to hide his death energy so well, and the rank of the ghost dragon was also not low, and it was even close to the seventh order.

In Eli's opinion, being able to control this powerful ghost dragon undoubtedly speaks to Rod's strength and his status among necromancers.

Coupled with Rhodes' mastery of potions during the Potions competition, Eli has realized that there may be an extremely powerful being among the necromancers.