Deserts had never been formed in a day. In fact, thousands of years ago, countries had also existed in this Desert of Death. But as time passed, these countries gradually died out, and the places they lived in were covered by the sand.

With so many ghosts and skeletons suddenly appearing, Roy guessed that this oasis might have existed in a desert country before. Otherwise, he could not explain why there were so many skeletons buried underground. However, there were really too many undead, way beyond Roy’s expectations. According to his knowledge, undead usually relied on the power of death to grow and awaken. Under normal circumstances, the souls of dead creatures would dissipate, and their remains would gradually decay and decompose. Without external influence, these corpses would only sleep quietly. Otherwise, large numbers of undead would be born every war. Who would still dare to fight like this?

There were probably only two explanations for the numerous undead born underground in this oasis. Either a powerful necromancer or lich had used death power to awaken them, or the location of this oasis was very special and could condense death power. In other words, this place might be a gravesite!

Of course, Roy leaned toward the latter because he observed through his Radiation Perception and found that there were no obvious radiation sources around the oasis. Other than Roy, Julia, and Fat Tiger, there were no other radiation sources, which meant that these undead had indeed come into being on their own.

Although there were many of them, they were all low-level undead like skeletons and ghosts. Occasionally, they would see a few mummies wrapped in rotten bandages. These enemies were not a threat to them. At most, it would take them some time.

With a wave of his hand, Roy used his magic power to create a huge Ice Storm. Countless black icicles poured down like heavy rain, covering the entire oasis. These densely packed icicles smashed down into the skeletons with immense kinetic energy and easily shattered them into piles of broken bones.

However, Roy had just eliminated a batch of skeletons, and a steady stream of them kept drilling out of the ground. Who knew how many such remains were buried under this oasis…

Seeing this, Roy felt annoyed.

It was not without reason that demons hated undead. After they eliminated these skeletons and ghosts, there would not be any souls left behind. In other words, no matter how many they killed, it would not be beneficial for Roy. Moreover, these undead creatures without any consciousness did not know what fear was. As long as they sensed the aura of the living, they would fearlessly rush forward, regardless of whether the enemy was powerful or not. The more high-level the demons, the more they hated them…

Beside him, Julia noticed Roy’s emotions and said, “Why don’t we stop entangling with these skeletons and fly away? I don’t believe they can fly and catch up to us.” Roy nodded. Just as he was about to agree, he suddenly thought of something and said to Julia, “Wait a little longer. Go and clean them up first. Don’t let them disturb me!”

Julia did not know what Roy wanted to do, but she still nodded. She held her sword with both hands and unleashed her magic power. Then with a fierce swing, a fan-shaped black fire wave immediately surged out and spread forward. All the skeletons and ghosts that touched the black flames burned to ashes.

Roy squatted behind Julia and took out Cassandra’s soul from the system space. Then he used his magic power to engrave a temporary summoning magic formation on the ground.

After placing Cassandra’s soul in the center of the magic formation, Roy began to summon the lich from the Pirates of the Caribbean world…

He did not know whether he could succeed. After all, this was a summons across worlds, but he had to try to find out.

Roy continuously output magic power to maintain the summoning formation. He found that this summons consumed a massive amount of magic power. Even though he was wearing the Cold Winter Armor and had ten times the magic power recovery speed, he still felt that it was slightly unbearable. This consumption was beyond Roy’s expectations, but he could only try his best to maintain it because the summons would fail once interrupted.

Fortunately, when the amount of magic power pouring out reached a certain amount, the area above the magic formation finally reacted. A black spot appeared and slowly expanded into a spinning vortex. This was a spatial gate that performed inter-world teleportation, very similar to the principle of the Gate of the Abyss.

When the spatial gate expanded to a certain extent, a skeleton wearing a petal-like long robe and exuding a cold aura of death appeared from the gate!

Seeing this figure, Roy heaved a sigh of relief. He really summoned Cassandra. “Master, Cassandra is summoned here!” Lich Cassandra first bowed respectfully to Roy before saying excitedly, “I thought you had forgotten about me…”

Roy felt her aura and found that Cassandra was much stronger than before, so he nodded. “Cassandra, I need your help now! You came at the right time!”

“Yes, Master!” Cassandra lowered her skull respectfully. “Please give me your instructions!”

“Don’t worry. How strong is this world’s repulsive force against you?” Roy asked.

“Not very strong…” Cassandra felt it for a bit. “But the repulsion still exists. With a conservative estimate, I may only be able to stay in this world for two months…”

“Really?” Roy nodded thoughtfully.

Two months was longer than Roy expected. Perhaps it was because the energy level of the Pirates of the Caribbean world where Cassandra was, was much lower than that of Ashan. The repulsive force of high-magic worlds toward foreign existences was always weaker than that of low-magic worlds. Beings with powerful magic power like Roy could even resist this repulsive effect with their own power, thereby achieving the purpose of staying for a long time.

Cassandra being able to stay in this world for two months meant that her magic power had improved.

However… it was not enough. Thus, Roy waved his hand, and a demon contract appeared out of thin air and floated in front of Cassandra. “Sign this demon contract. You can use my magic power to stay in this world for a while!”

“Yes, Master!” Cassandra did not hesitate at all as she stretched out her bony palm and pressed it on the contract.

A black light flashed from the demon contract, and Cassandra’s name appeared in it. The demon contract was established! Then it disappeared into thin air.

as

The moment the contract was established, Roy felt a portion of his magic power was being sucked out of thin air and transferred to Cassandra’s body.

“Master!” Cassandra looked at Roy with her hollow eyes and said in admiration, “From your magic power, I can feel that you’ve become stronger than before…”

“Okay!” Roy nodded. “Let’s catch up later. See the undead behind? What you need to do is to think of a way to control them and make them yours! Can you do it?”

Yes, this was Roy’s goal. Because he expected to encounter a large-scale war in this world, Roy initially wanted to summon some low-level demons from the Abyss to form an army, but after seeing these undead, Roy changed his mind.

No matter how he exploited those low-level demons, Roy would always have to pay some souls. Even if he was a high-rank demon, he could not break this rule. But it was different if he used these undead as his army.

There was no need to provide food and drink, nor any need to pay souls. Except for their weaker combat strength, undead creatures made the best army. Even if Roy hated these undead, he could not deny this advantage.

However, Roy was a demon and not a necromancer. He could not control these undead, but it was different after summoning Cassandra. Liches were natural necromancers!

It was a bit funny to say. Roy’s demon blood could create liches, but he could not control undead and could only indirectly create an army of the dead through this method…

“Undead enslavement!”

After receiving Roy’s order, Cassandra immediately turned around, and faint undead flames appeared in her eye sockets. An invisible wave spread out in all directions from her body. When this invisible wave swept through the skeletons and ghosts, the undead that were fearlessly rushing toward Julia and Fat Tiger immediately stopped dead in the tracks.

Just like how high-rank demons could control low-rank demons, Cassandra, a high-level undead, could also easily control low-level undead!

The skeletons and ghosts that Casandra controlled in large numbers stopped their movements and quietly waited for orders.

Seeing this, Julia was surprised. She did not expect Roy to summon a lich…

Curious, Julia walked back and sized up Cassandra.

Cassandra was rather clever. She immediately realized Julia’s status and bowed her head respectfully. “Mistress!”

Julia was very satisfied with her greeting and immediately accepted Cassandra’s appearance.

Fat Tiger stared at Cassandra curiously. He felt that Cassandra, who was full of bones, was very tempting to him and wanted to go up to lick her.

Cassandra also noticed Fat Tiger’s gaze and shrank back fearfully… “Are they all under control?” Roy asked. “There are a total of 6,912 skeleton soldiers and 124 low-level ghosts. This is the limit of undead that I can control presently…” Cassandra replied.

The number of undead that a lich could enslave and control was related to the lich’s own magic power. The stronger the magic power, the more they could enslave. Of course, it was also related to the strength of the enslaved undead. Fortunately, all that appeared here were the lowest-level skeletons and ghosts, so Cassandra finally controlled more than six thousand.

Looking at the skeleton still emerging from the ground, Roy ordered Cassandra, “Very good. Let these undead deal with the remaining undead!”

Therefore, under Cassandra’s control, the enslaved skeleton soldiers and ghosts immediately turned around and killed their own kind! As for Roy, Julia, and Fat Tiger, they relaxed and started watching the show with a smile…