The group were running towards the heart of the territory and they killed any lost soul that got in there way though fedi and Ren were doing the work Peter is carrying an unconscious Sonia Peter knows that Sonia isn't dead because he could feel her heart beating through his back.
After a while of running they were in another cave but this time there was a girl with white skin and white hair with her eyes covered and she was sitting in a pile of bodies of both spirits and humans and she was covered in blood while licking the blood of her hands.
They group were in shock on the pile of bodies more so Peter who was holding back the urge to puke his guts out.
This is mai merry who became a Lost soul that claimed the under bridge as her territory and she was devouring anyone who gets close to her territory at night a she will come out and kidnapped students or passers-by or even spirits to get stronger and she went through an animal like state through a dark knight for then into an apex spirit.
Apex spirit is a type of spirit that when either a lost soul or pure souls are in there peak thought the still need to devour souls to get stronger for humans is a different process when humans develop more and more both physical and spirituality they grow a mark on there bodies this mark is a symbol that a human is almost reaching there peak at unlocking there spiritual forms but that's not all the mark can do it enhances the strength of the user by alot and there spiritual energy it's stronger enough that weak spirits and human can feel fears but Ren could tell that she is still in an infant state of an apex so if they are careful enough they might be able to beat her
Mai: so you were the ones who are messing around in my territory but you guys actually lasted longer than the other my other preys but too bad you found Mr because now you will die.
After she says that the territory's rocky field was moving around like water burying the bodies in the ground then tendrils appeared from behind her and the tips sharpened making them as makeshift javelins the group tried to move but there feet were buried in the ground they tried to get out but it was tough the javelin got close until.
*CRASH*
The group opened there and saw Moline who catchup with them she used her tail to smack mai and to make her loose her focus on her territory which it worked the javelins were stuck in mid air and inches away from them.
Moline: if I were you guys I would wake Sonia up she can is strong enough to break you out of there.
Peter: yeah you are probably right I can sense that her spiritual energy is recovering her.
Peter moved his body to wake Sonia up and thankfully it worked.
Sonia: what the hell happened?
Peter: well short version we kinda got to the final boss and almost died but moline saved us so now we kinda need you because you are kinda the tank of the group.
Sonia: great give me a minute I'll get you out.
While that was happening moline put all her attention on mai and analyzed her body she imagined that this girl didn't train much so her body is weak even though she is an apex spirit but being an apex dosent meab anything if you have a weak body but on the other hand she had good control on her territory which is both an advantage and disadvantage because one if moline or Sonia if she gets the others out by the time manages to land a blow on her it would mean an easy kill but the second it would be a pain in the ass for all of them because her territory molds to her will so if moline was gonna bet her money was that she would make a stone version of herself and attack her and the others.
And as if to prove her point when mai recovered she had on glaring eye and she buried herself in the ground and a few moments later a massive stone version of mai was in front of then.
Mai: how dare you hurt me when I'm done with you all I will make sure you feel the pain while I eat your soul!!!
Sonia who finished getting the crew out of the ground was in a shitty mood so she responded in kind she got out her kanabo and she charged it up with spiritual energy but this time they could all feel that it was stronger she ran towards ran towards mai who looked scared and send out javelins towards her thoughts the crew destroyed them so Sonia could keep on running towards mai
Mai in a desperate move harden her stone body but this wasn't gonna work Sonia who jumped towards the heart of the stone mai she was ready to swing and mai tried to squash her like a bug but moline wrapped up the left arm making mai lose her focus and unintentionally soften her stone body.
When Sonia swung and made contact with the heart area a massive shockwave came over the arena and the group in the ground had to cover there eyes from the air pressure the stone figure in response to this collapsed and from the back shot out an very injured mai who had one of her arms missing and there was a hole on the side of her body needless to say the girl was utterly crushed and she can't believe that she lost in her own territory and not just that she lost in her strongest form In one single powerful blow.
She looked up and saw Sonia who was glaring at her
Sonia: you something we came here to find you because Katie wanted to see if you were still her and right now if she saw you like this she would be disappointed.
Mai was dumbfounded by this but this turned into rage.
Mai you dont-
But she was cut off when Sonia bashed her head away from her body killing her and thanks to her death the place turned pitch black and then it shattered like glass revealing that they were still under the bridge they all saw how mai's headless body was fading away in black dust Sonia honestly didn't feel bad for the girl Peter told her about the amount of bodies mai consumed and sonia lost all sympathy for the girl and decided to just kill her fast to get it over with
the silence was broken by moline.
Moline: oh my God max!!!
The group remembered that max was left behind to keep the lost knight busy they ran towards were moline went and they saw max who had a broken arm and one of his leg was had a hole in it along with the area that the liver would be in needless to say max was in a bad state but what caught there attention was the dark matter surrounding his broken arm and they noticed that it was healing really slowly they only had one thing to ask themselves.
Group: what the hell happened!?