Underneath the pile of rubble Akeya shifted about in her shadow form, trying to find a location where her entire physical body would fit. She would have to prepare an attack for the monster, so she could immediately pay it back for all the trouble it had put her through. On the other hand she was grateful that she went insane before encountering her: she had now become used to it, at least enough that she could actually plan this fight rather than jump at it like a feral beast and get killed like one.
Fortunately most of the trees that had fallen down had been very big ones, so eventually Akeya found a place underneath all that rubble where she could turn back into her physical form. Continuing to eat the shadows she waited and waited, hearing and feeling the demon work its way through the mess it itself had created. While she had calmed down to some extend she still felt an extreme hatred towards the entity. She would take it down. She would at least make sure of that.
The demon meanwhile was smashing trees apart and pulling stones away at amazing speed, the wail of the damned surrounding it as it worked in a frenzy. It wanted to get to its prey. It had hunted her long enough, it now wanted to savour what it had killed. It no longer bothered causing hauntings, all its focus on using its physical form to work its way through the wood and stone that had been stacked on top of each other.
Meanwhile Akeya finished eating her shadows, and instead started breathing deeply. Gather all energy she had stored up inside her chest, condense it, increase it, turn it into a ball of magic power that she could use. Inside her lungs her strongest attack was being prepared, ready to be let loose as soon as the demon showed itself. Or maybe even before. She probably would have better results if she started her assault the moment it began to get rid off the final obstacle.
When that moment arrived the demon was even more impatient than before, roughly pulling at the tree trunk in an effort to get it out of the way. Because of that it wasn't really prepared for the fact that as soon as it got the wood out of the way it received a full frontal blast of dark flames. Akeya releasing her most potent Shadow Dragon's Roar which caused her to temporarily resemble a humanoid dragon rather than a human with some draconic traits. Caught by surprise the monster roared, trying to push the torrent of shadows back but having no success. It might be a demon, but it wasn't one that could just block such an assault. It was certainly powerful, but such a sudden and powerful attack wasn't something it could just shrug off.
When the dragon's roar ended Akeya Shadow Stepped right in the demon's face, who was still reeling from the shadow flames eating at it. The arm of which the shoulder had been bruised formed a claw out of shadows, slashing at the demon's chest and causing it to roar even harder. The other hand grabbed a long and sharp dagger made out of shadows. With not even the slightest bit of hesitation the half dragon started stabbing the monster's face and neck, clinging onto it with the other hand, her feet and her tail to ensure it couldn't retreat.
The hunter, who had been working for so long, didn't like this at all. Suddenly it was being savagely assaulted, given no chance to properly fight back. Its tentacles lashed out but it couldn't get a good hit in, only covering Akeya in lots and lots of cuts and slashes while she just kept stabbing. Her normal control had been completely replaced with a savage fury which made her keep attacking and attacking and attacking, forcing the monster on it's knees before a tentacle blew her aside.
Turning into her shadow form Akeya rolled back onto her feet, her adrenaline rush allowing her to ignore her wounds as she Shadow Stepped back towards the demon. However before she could return her assault the monster jumped up and ran away, leaving behind a trail of thick black blood that smelled bad enough to make Akeya feel like she was going to vomit. The demon had been covered in a torrent of shadow flames, had been slashed, stabbed, stabbed so many times. It retreated faster than Akeya could follow, and with it all the nightmares and strange phenomena disappeared. The only thing left was a set of torn pages, which Akeya would later realize were a perfect fit for some of the torn off pages out of Samuel Martin's journal.
However right now the half dragon had other things to focus on. This was without a doubt the worst job she had been on so far. Tortured mentally and physically, she temporarily lost her mind and turned into a beast. She now realized that as powerful and mighty as dragons might be, they also had a more beastly side. She would have to deal with that later on.
But for now she was alive. Alive to recover from what happened. Alive to figure out what happened. Alive to grab her reward, those pages left behind by the demon and its thick fog, and leave this forest.
It took several days for Akeya to return to Blue Pegasus' Guild Hall after that, doing her best to avoid attracting attention from anybody else and refusing to say what happened. She gave the torn off pages to Korikami to store away. She would deal with that later. First she had to recover from this ordeal.