With a bang, a black shadow emerged from a pool of water in a cavern. After taking out his opponent, Ryan finally surfaced.

After resurfacing, Ryan looked around and saw that it was the bottom of a sinkhole, and there were some blue mosses growing on the surrounding stone walls, so he could faintly see the surrounding situation. After Ryan looked around, there was a figure lying motionless on the water five or six meters away.

"Hermione!" Ryan exclaimed, and immediately swam towards the figure.

After swimming to the side of the dark shadow, Ryan realized that Hermione had a bubble head charm on her head, which made Ryan breathe a sigh of relief. Then he dragged the assailant and Hermione to the only shallow spot he had seen by the pool.

After a brief examination, Ryan noticed that Hermione was fine, but had passed out. This is supposed to have been the beginning, when the assailant knocked her unconscious, and Hermione gave her a bubble head charm. After that, he set her aside and ambushed her in the water, preparing to ambush Ryan in order to capture two hostages at once.

Judging by this hand, the attacker should be a skilled veteran: first completely incapacitate a hostage to avoid getting in the way, and then use his advantage to ambush another opponent in the water. It's just that he didn't expect a junior student to be so strong in hand-to-hand combat, and he still has good equipment on him. It was planted in Ryan's hands.

Since Hermione was fine, Ryan put her aside first, after all, he was going to ask for something from the attacker, and he might take some less inappropriate measures. In this case, it's better not to let Hermione see it.

Ryan first used his magic to activate the leaf brooch given by the headmaster before trying to contact the headmaster, but it unsurprisingly failed. The brooch is as unresponsive as a normal trinket, and it seems that there is magic here that can suppress these communication tools. But then again, it seems that in the movies he has seen before, it seems that he can't contact people at critical moments, which may be an inevitable event.

It seems that you can only rely on yourself. Ryan shook his head at this and walked over to the attacker. He noticed that the attacker no longer looked like a human being: he had turned green from head to toe, his exposed limbs were covered with scales, and shark-like gills had grown around his neck. But the terrible thing is that the wound on his waist is no longer bleeding, and the wound has grown sprouts. The granulations wriggled constantly, trying to seal the wound.

"God, what the hell is this?" Ryan thought about prying open the other's mouth to fill the medicine, only to find that the teeth in his mouth had become sharp like razors.

The change in this person's body made Ryan feel ominous, so he put down the medicine bottle and called Xiaoqing from the grocery store, and waited for Xiaoqing to tie up the guy before pouring the healing potion on the other party.

Less than ten seconds after the potion was poured, his eyes snapped open and he struggled to his feet, and at the same time a beastly roar came out of his mouth, and Ryan saw nothing but rage and bloodlust in his eyes, and the wisdom that belonged to man was completely gone.

Is this out of control? Ryan thought. After all, he saw that the human modification materials left by Slytherin had repeatedly reminded that adding other biological parts to the human body was very easy to cause loss of control, and all the performances of the person in front of him perfectly matched the situation after the loss of control described by Slytherin.

It seems that this person is hopeless, and he can't ask anything more, so he can only take a backup plan now. Ryan pulled Clinway's teeth out of the scabbard of his thigh, and then poured his arms into full strength to cut off the head of the monster in front of him.

It seems that the battle in the Fallout World gives people a lot of experience, at least the hand that cut off the head is much cleaner than the executioner who cut off Nick's head back then. Ryan thought about the mess as he cut strips of cloth from the other party's clothes and dipped them in the green blood and drew a magic circle on the ground.

When the magic circle was finished, Ryan placed the head in the center of the magic circle, and then pressed the magic circle with both hands to pour magic power into it. This is the part of life magic about the soul, which can be used to extract the soul of a person who has just died and read the contents of the soul. The problem is that this torture is a one-time thing, and at the same time, it requires the magic user to have enough soul strength to be able to find the part he needs in a large number of memories.

With the infusion of magic, a large number of memory fragments soon rushed down his arms towards Ryan's mind. Ryan hurriedly picked up the Maoshan Dao Law and hugged Yuan Shouyi, and then began to slowly sort out these memory fragments. Seven or eight minutes later, Ryan let out a long breath and left the magic circle with both hands. A dark blue flame suddenly ignited from the array, burning everything in the magic circle to ashes.

Because of the mutation that had occurred before, there was already a serious problem with his soul. When Ryan checked his memories with life magic, he only saw some fragmentary memories, most of which were fragments of meaningless life scenes, but fortunately, Ryan finally found some of these fragmentary memories related to this underground space.

This underground space is not newly dug as Ryan imagined, but an ancient ruin. The Castro Brusho School was built on the ruins long after they were abandoned, but none of the school's teachers and students discovered the place.

It's no wonder, after all, this land is littered with shards of demonic stones, so unless you dig a cave that communicates with this ancient ruin, you will never be able to find the ruins with a magic check. At the same time, the ruins are buried very deeply, and the schools, which only searched and excavated the space in the shallow depths, naturally did not find this ruins.

As for why the school was built on the ruins, it was entirely because even though wizards could do magic, they were human. Therefore, when choosing a place to live in a settlement, like those Muggles who do not have magic, they tend to choose a place that is safe, easily accessible, and has sufficient resources. Especially in the early days when the Floo network was not widespread, wizards would choose places along rivers as settlements to facilitate the circulation of goods and the movement of people.

Especially in places like schools, where large populations are gathered, they may need to get some basic necessities from the Muggle world, such as food, cloth, furniture, etc. Then the river naturally became the best transportation route for them.

In addition to this, the school construction also requires sufficient space and absolute security. All of these conditions may be easy to find in the plains, but there aren't many places deep in the wild Amazon rainforest that can meet all of these requirements. In this case, it is easy to understand that the school was built on such a forgotten relic.

Just like Lane in his previous life, many cities with history were often able to excavate various cultural relics from the ground when they were being built. It's just that this time the school didn't find the ruins hidden under the ground, but the school's enemies found and used the ruins.

According to what Ryan found out from the memories of the fake Professor Ferdinand, there are at least three tunnels that can lead directly from the ruins to the underground network under the school garden, and it is a pity that the impostor, as a member of the Chimera Society, does not know much about this relic that originally belonged to the Blood God Cult.

Ryan remembered from today's incident that he was first infiltrated by Sirius, then attacked by the Death Eaters, and finally successfully attacked Hogwarts Castle by Voldemort's men. He felt that maybe it was a curse, and every place that claimed to be the safest would always be successfully attacked. This was true of the Maginot Line and Iwo Jima in the Muggle world, as well as the various schools of wizards.