[h3]Pthumeru Yharnam layer, the Old Labyrinth[/h3]
Through first his partially transformed hand and since through his grip on his Beastflayer, Farren would very strongly feel everything inside Arrayah moving and shifting as he delivered two brutal attacks in quick succession. Though her wounds no longer appeared to heal it seemed as though the rampant mutations assailing her only intensified, sending ripples of change through her form... but as her once-powerful regenerative ability depleted and failed to keep up with it, there was nothing to hold back harmful mutations as well. Within seconds Arrayah – desperately clinging to life even with a gaping hole through her chest and a burning glaive embedded in her head – was covered in repulsive cancerous growths. Her body convulsed, pushed far beyond any sort of functionality, and started randomly spurting blood as her skin tore open on its own.
She kept mutating, and the mutations kept becoming more and more destructive. After about ten seconds it had escalated to the point that her entire form quite literally unraveled, with flesh and muscle shredding apart from the sheer enormity of unbridled change. That, ultimately, was the final fate of the Black Blade of Yharnam: with her misshapen naked bones lying amid a pile of steaming gore. Only then did her failed evolution end, and her form finally became inert.

The Shopkeeper stopped their approach long before then, once they saw Farren deliver his visceral attack, and the last vestiges of a will to fight left their prey. They hesitated for a moment, cocked their head, and then faded away, their hunt at an end.

Ophelia, meanwhile, immediately went about seeking all the knowledge and understanding she possibly could while Farren put an end to what had unquestionably been by far the most harrowing fight of their short careers as Hunters. She called upon the Messengers and, using the runebrand as a medium as she had done before, showed the Deception Rune to them to see what wisdom they could offer from the Nightmare.
[QUOTE=Messenger scroll about the Deception Rune]Deception
A Caryll Rune discovered by the Pthumerian Hunter Arrayah along with the Profane Abyssal Blade.
Erases the bearers presence indiscriminately until they interact with the creature. Also allows one to speak without producing sound, essentially communicating telepathically.
Arrayah wanted to be the true Champion of both her beloved blade and Pthumerian Yharnam more than anything else. The blade gave her power, told her what she needed to hear and showed her what she needed to see, all while hiding her crimes from the world.
For what is a more powerful deception than what is derived from truth?[/QUOTE]

[QUOTE=Messenger scroll about the Cosmic Sword of Truth]Cosmic Sword of Truth
An impossible conceptual weapon that is the distilled essence of the Cosmos.
Holds the powers of the Holy Moonlight Sword and Profane Abyssal Blade alike, but also so much more. Only the gods could guess at its limits.
Long ago, two siblings wanted to kill a Great One and, in their quest, created a sword. But since there was but one sword and two of them, they split their god-killing weapon into two, and ventured into the Old Labyrinth to hunt their prey.[/QUOTE]

A moment later Ophelia applied the Guidance Rune to herself and addressed the voice in her head, only to find that it still felt somewhat faint, its connection to her still far from as strong as what she had once had with the Holy Moonlight Sword. “[I]Once part of a singular rune? Champion, they are mirrors of the blades they belonged to. Just as the Holy Moonlight Sword and the Profane Abyssal Blade were each independent entities, yet also halves of this whole, the runes are the same. Guidance and Deception exist on their own... but together, they form the two sides of Truth. And Truth is what you need to fully wield the power of this sword.[/I]”