Sudden Demons (13)

After examining each demon corpse, Ang dug out dozens of Black Magic Crystals that emitted a dim, ghostly glow, then carefully peeled away their rough, resilient black hides.

These demons' hides were thicker than those in his memory, and their patterns were clearer, showing that they had existed in this plane for quite some time.

After finishing the work, Ang summoned the Nightmare King.

The enormous black shadow slowly emerged from a rift, its entire body wreathed in a dense nightmare aura.

The moment it appeared, it let out a low growl, as though it had smelled familiar flesh and blood, greedily staring at the demon remains on the ground.

It opened its jaws, tore, and swallowed. One demon corpse after another was dragged into its belly.

Ang stood nearby and observed quietly. During the feeding, the Nightmare King's body swelled slightly, while its scales gradually took on a deep-purple metallic sheen.

Lines of energy surfaced across its body, as though it were undergoing a transformation toward becoming a Level 5 Magical Beast.

"It... really likes these demons," Ang murmured, a trace of gravity flashing through his eyes.

Only after the Nightmare King gave a satisfied low roar and returned to the Abyssal Prison did Ang begin setting up several detection spells around the area.

He carefully surveyed the hilly region for more than two hours, yet found nothing.

There were no remaining traces of aura or energy fluctuations. Those demons seemed to have appeared out of thin air.

In the end, he could only return to the airship with his doubts.

"When did they attack you?" Ang looked at the lizardman envoy, his tone low.

"My lord, around a week ago. They appeared outside our tribe without warning and attacked without saying a word," the lizardman said through gritted