The monster's arm grew back as if it had never been hurt.

"The fire is raging. Three spells struck the monster at the same time, and the flames engulfed it in an instant.

The monster let out a terrible cry and flapped its hands against its body.

The flames were extinguished, and the monster's gorgeous clothes had burned to the ground, and its gray skin had turned into a large swath of burnt black.

Alan keenly discovered that the blackened area of the monster's body did not appear to heal, that is to say, flames, effective!

The monster suddenly made a startling movement again, roaring as it dug its hands at the charred flesh of its own body.

After Allen and the others saw him dig up the blackened flesh, the rest of it began to heal on its own again.

"I see, it's a troll!" Hermione clapped her hands excitedly.

"If a troll loses a limb or part of his body, he can grow it back, and if he puts a severed limb on top of the stump, he can immediately reconnect it. In addition, flames and strong acids can deal normal damage to trolls and inhibit regeneration. Hermione said quickly.

"Hermione was right, but with more powerful flames. Alan also thought about the origin of the monster, and he was already thinking about countermeasures.

The troll was almost recovered, and without hesitation, he lunged at Allen. Crambled frantically at the nearest Alan.

Alan used a blasting spell to slightly block the troll's speed, and he motioned for Hermione and Luna to quickly evacuate outside.

Hermione and Luna did as Alan intended, and quickly ran out.

While covering the two of them to leave, Alan quickly waved his wand and blocked the trolls with an iron armor charm.

Around the corner where he was about to leave, the troll jerked out its claws and pounced, swinging desperately.

While Alan was constantly defending, he had to cover the second daughter's retreat, and if he was not careful, he actually let the troll's claws stretch out.

In order to keep Hermione and Luna behind him from being harmed, Alan stiffened his head and turned slightly sideways to avoid the fatal blow.

The troll's claws landed on Eren's arm, scratching through his clothes and leaving a deep scar on his arm.

Blood instantly flowed out of Allen's arm, staining the sleeve near the wound red.

"Ellen!" Hermione exclaimed, Luna's large, light silver eyes watching Eren's wound with concern.

"I'm fine, you guys get out of here. Alan gritted his teeth, ignoring the injury on his arm, urging the two to leave quickly.

Leaving the room, Hermione and Luna quickly dodged away as Alan had instructed. Eren draws the troll's full attention, and the troll pursues him closely.

Ahead was the pit where Alan had fallen, and Alan did not lose any castration, went straight to the pit, and jumped without hesitation.

The troll, who had lost his mind, also staggered and jumped down.

However, before Allen jumped, he had already quickly looked at the landing position.

As soon as he landed on the ground, he quickly transformed into a phoenix phantom shift, broke away from the pit trap, and returned to the surface.

And the troll, because of his burly stature and huge physique, fell and was pierced by those spikes.

As the troll struggled, there was a sudden sound of rolling and rushing above him, and the raging flames came straight towards the troll, engulfing him in an instant, and the tongues of fire turned to ashes everywhere they went.

In the deafening roar of the flames, Eren healed his wounds, and the three of them continued on their way in the heatwave.

Before leaving, Alan returned to the sarcophagus chamber and collected the pieces of meat that the trolls had scattered on the floor and placed them in the storage compartment.

"Alan, why are you ......" Hermione couldn't understand as she watched Eren collect the disgusting gray and black minced flesh.

"Now that the troll is almost extinct, don't you think its ability to heal and regenerate itself is worth studying? "Alan has his own considerations.

In addition to the troll's flesh and blood, in the sarcophagus, Eren found a refined dagger, perhaps used by the troll during his lifetime, and apparently, the troll who turned into an undead preferred to attack with its claws.

The jewels in the sarcophagus are also of considerable value: they include an intricately shaped silver ring, a gold necklace with cut-outs, and two silver armbands carved with dragon statues.

The sarcophagus also contains 220 ancient silver coins and 50 ancient gold coins, as well as a dark brown parchment notebook.

Alan picked up the notebook and flipped through it quickly.

It turned out that this troll was originally a human sorcerer belonging to the Dragon Worship Sect, and was buried alive here for an unforgivable mistake.

However, he was not willing to end his life here, so he used the forbidden spell of the Dragon Worship Sect to capture a large number of trolls, and by studying them, he restored the regenerated parts of the ancient ancestor troll bloodlines contained in the bloodlines of these trolls, hoping to transform himself from a human wizard to a troll wizard, and was imprisoned alive in the grave.

Perhaps something went wrong during the spell casting, and the troll he turned into was weaker and slower than a normal troll.

At the same time, he still retains the dragon sacrificer's customary way of fighting. But in fact, due to his weak strength, he can't tear his opponent to shreds as easily as a normal troll.

As time passed, his mind blurred and he became insane, and he closed himself in the sarcophagus and allowed himself to fall asleep.

Until someone opens the sarcophagus, he will wake up again.

He thought well, but when Eren opened the sarcophagus again, he had lost all his sanity and life for a long time, and had become a troll undead completely.

Closing the notebook and packing up the sarcophagus, Alan put the Eternal Flame on the ledge into the storage compartment before leaving.

Next, they returned to the rotunda at the entrance of the castle and walked in the other direction.

The room to be explored was largely empty, except for a few pieces of rubble on the floor.

In this small room away from outside interference, the three of Allen took out some water and food to replenish their strength and take a break.

"We didn't touch any of the werewolves on that road just now, and it seems that they entered it from this road before. Next, it can be very dangerous, and we must be vigilant. Alan solemnly reminded.

Hermione and Luna's expressions also became serious, their previous experiences revealed the mystery and danger of this underground castle, coupled with the werewolves who didn't know where to hide, it was really dangerous, and they had to be vigilant.