The way to release the ghost is actually very simple, this bird has been dragged for so long, and it has long run out of oil. Once there is no magic to continue its life, as long as you wait patiently for half an hour, it will be completely drained.

Then, the ghost will run out on its own.

"Can't you just kill that bird?" Suddenly, a mage next to him asked.

Benjamin shook his head.

"Killing prey while eating will anger the ghost. He explained, "Although we are ready, who knows if the glass cover that blocks the spiritual power can block the ghost? besides, the ghost is very weak now, if it kills the prey, it does not store enough energy, and the dark elemental environment here is not good enough, what if it dies all of a sudden?"

Ghosts aren't like other undead creatures, so they'd better be careful.

Hearing this, the other mages on the side also nodded, and no one had any objections.

At this moment, there are about a dozen people standing in the laboratory, all of whom are mages who are currently specializing in the study of the undead. They were still there to cut through the remains of the undead and study the kind of residue that the old man had extracted, but when they heard that Benjamin was going to release the ghosts, they put down their work one by one and rushed over.

And this laboratory, because of the convergence of dark elements, looks very weird, dark shadows. A group of people stood among the dark shadows, staring at a bird in the glass cover, their eyes were hot, and they did have a sense of evil magic.

As time passed, the bird's leaning body became more shriveled. The fur on its body had long since fallen off, and its bare skin began to wrinkle and dent, making it look very ugly.

Seeing this, the mages couldn't help frowning.

"The ghosts hidden in the body have begun to revive because of this dark elemental environment. Benjamin said without changing his face, "The flow of life force is accelerating, be careful, it's coming out!"

Out of caution, he opened the water elemental realm and summoned a dozen soundproof ice hockey balls to protect all the mages inside.

And after he completed this move, a faint fluctuation suddenly came out of the glass cover.

"Poor little bird, after being tortured by you for so many days, finally ushered in the death of freedom. The system said, "It died magnificently, it died great, it died ...... Hmm? wait. ”

It would have used a sarcastic tone to condemn Benjamin's inhumane act. But it was just halfway through its sentence when it suddenly stopped, and the stunned words seemed to have seen something incredible.

And at this moment, Benjamin has long been out of time to pay attention to the system.

Everyone's eyes converged on the glass cover. What they saw was that the bird, which had been lying on the ground like a dried corpse, suddenly moved.

"It's—it's alive!" someone exclaimed.

Benjamin took a deep breath, shook his head, and said, "No...... It's dead. ”

In the glass cover, the bare wings fluttered, like a baby trying to find balance. The tip of the closed beak also began to tremble, but between opening and closing, there was no breath in and out. The two paws moved slowly at first, and finally ...... Push hard until it can actually get up from the ground.

After a series of unskilled struggles, the bird stood up.

Then, it opened its eyes. A crimson light lit up from its eyes, and Benjamin couldn't help but think of the "no entry" red of the various warning signs.

This is...... This is......

"It's undead this bird!" the system exclaimed, "It's been so long, I thought the ghost didn't have the ability to bend over the living creatures like in the movies, but I didn't expect it...... And it did. ”

At that moment, Benjamin suddenly said in his heart: "Activate the state of nothingness, just a second, I need to confirm whether I have fallen into a hallucination." ”

The system was taken aback by his tone, but it was carried out immediately. Taking advantage of that second of nothingness, Benjamin stared at everything around him with wide eyes...... Fortunately, all this was true, and he did not fall into a hallucination.

He breathed a sigh of relief.

The sudden change in the ghost's appearance took him aback, which is why he was so nervous. If things get out of hand, it's not a joke, and the entire academy might even be eaten up by it.

And now, knowing that they didn't fall into hallucinations, there's nothing to worry about.

"Lord Dean...... Is this what ghosts look like?"

A mage on the side turned his head and asked suspiciously.

"Of course not. Benjamin quickly shook his head and said, "I don't know what happened, but the ghost has completely taken control of the bird's body." We may have just witnessed the birth of a new undead. ”

When everyone heard this, they also showed surprise.

At this time, the "ghost bird" in the glass cover seemed to have become accustomed to this body, waving its wings to fly. However, the feathers on its wings had long since fallen off, and the ugly creature could not fly. As a result, it instead began to crash towards the glass cover in front of it.

The mages were taken aback by its actions, but they were relieved when it slammed headlong into the glass cover and was completely bounced back.

This thing...... Seems a little weak?

The undead are apparently painless. After the ugly bird was bounced back, it immediately adjusted its balance and hit the glass cover for the second time. No one knows what drove it to frantically break out, but when it crashed into the glass cover again and again and then failed, the entire laboratory fell silent, and the atmosphere was inexplicably awkward.

That description seems to be a powerful ghost, and that's all it turns out to be?

“...... Either way, we now have a living undead to study. The old man coughed dryly and said, "You don't have to make that trip again." ”

Benjamin scratched his head, a little puzzled.

Don't...... The undead in the world of the undead are all derived from ghosts through this process?

It always felt like something wasn't quite right.

However, at this moment, a sudden change occurred. After an unknown number of failed attempts to hit the glass cover, the ugly bird stopped. The dark elements in the glass cover suddenly surged, and black shadows flew up and down. Immediately after, the ugly bird opened its mouth and spewed out a black ball of energy.

With a crisp sound, the glass cover that trapped the bird broke.

Possessed by a ghost...... Or rather, the bird that merged into the two, and at this moment it took another step and leaped out of the hole in the glass cover.

Then, the dark elements in the entire laboratory seemed to be inspired by something, and converged towards the bird.

At that moment, under the bare wings, a feather phantom condensed from the dark element suddenly appeared. The ugly bird vibrated its wings, and it really flew the moment it jumped.

Under the stunned gaze of everyone, it flew straight in the direction of Benjamin.