Answers

Richard Morgan shouted at them to never come back as they walked down the path away from the farm. Good Ed Morgan shouted even louder that we could come back anytime, and eventually Dick's curses at us morphed into cursing his worthless son. The sound grew ever more distant until it was lost in the trees.

"May I take this off now." the Devil pointed to the bandages hiding their face.

"Nah, what if someone else comes up the road. I don't want you putting it back on behind a tree every time we see someone new." Aria shuddered, thinking about a village learning the truth and attacking them in a mob until they strung both her and her monster up.

"May I at least move the parts blocking my eyes. I'm having trouble feeling where I'm going." Right on cue they ran into a tree.

"Would it help? You don't even have eyes anyway."

"Yes, but I still seem to look out of my eye sockets."

"Can you smell and feel too?"

"I can still feel, but I would require a tongue and nose to taste and smell."

"But you also need eyes to look."

"While your logic is flawless, you seem to forget that I have no idea how this works! And anyway, you put me in this position. There wasn't an abundance of choice of things to posses in that freezing keep where you summoned me. It was either this pile of bones or a rat that was scuttling in the walls at the time. And I did rather think this form would have more dignity. Anyway... " they sounded impatient, "may I remove the bindings over my eyes, as I asked you before."

"Fine! Do it if you care so much, just shut up already!" She didn't know why they were asking for permission all of a sudden. Maybe its because she'd told them to cover their whole face with the bandage while they were in a different room from the Morgan's. She did seem to have some power over him. No matter how much they complained, they did seem to do most of what Aria asked them to do. Like carry the sword or shut up for a while.
The Devil fiddled with the bandage until it left two thin gaps over their eyes. Black was the only thing Aria could see under those slits, but it was positioned in a way that made it look like a shadow and not two socket less eyes. That was good. She'd have an easier time explaining it to the people they met. She'd told the Morgan's yesterday that 'He had taken a vow of blindness', and that the bandages made that easier. It sounded believable enough, though now she could tell people that they just had an ugly skin condition, and that the bandages were for their own good.

Though it dawned on her that she'd described the Devil as a man to the Morgan's without thinking. She didn't really know what they were. She'd heard some from the village preacher that the Devil was the son of God, destined to be his antithesis, whatever that meant. But the stories her father had told  her and Aura described the Devil as some inhuman monster.

"What are you?"

"The remains of what seemed to be a human." They stopped it there.

"Idiot. I was asking about before that."

"I know, its just the skeleton is a much easier explanation." Again they stopped abruptly, as if that had answered anything.

"Okay then, are you a boy or girl?"

"It doesn't matter."

"Then how am I going to describe you to people?"

"This skeleton is taller than average, so you might as well default to male to draw less attention."

She grunted and muttered some curse under her breath, which they ignored. They walked in silence for a few more minutes until Aria decided to change her approach.

 "Fine, don't want to get personal. Then just tell what you know about the now. How is your body staying together like that?"

They looked down at their bony fingers wrapped in bandages. "I have little knowledge on the power shared between Knight and Squire, but it seems its keeping my bones glued together somehow, and its returned some of my faculties like sight and touch, as I said before."

"Do you still have your Devil powers?"

"If I did, I'd have blown you to pieces by now. However it seems this sword was made in utter rejection of me. My power seems drowned out by it, like darkness being drowned out by the light."

"What about the power you were going to give me? I still shook your hand, so what gives?" Getting power for the Devil had been a cornerstone of her plan. Though to be honest her plan was made up of three steps. Step one, get power from the Devil. Step two, make sure the Devil won't make her regret it. Step three, kill all of the Knights of Haven and rescue her sister.
It was a simple plan but it required power to make it happen. She'd also hadn't considered how long it would take to walk to Haven. She'd assumed that her new power would let her teleport, or fly or something. But her new power seemed to be the power to feel nothing, because she felt nothing. And every time she'd asked the Devil, they hadn't given her any answers. Maybe this time!

"The power I was going to give you? Oh yes! I remember now! I have no idea." and they just walked away. 

Well, there goes that plan. Maybe she didn't need power to kill the Knights though. Maybe she could use her smarts to beat them. Like, she could tell them that there are devil worshippers in that back alley over there, and that they should go check it out! And then the Devil would wack them over the head with the sword!
Hmm. Maybe she should workshop it, but the sword part would probably work. Those legendary swords could do some damage, she remembered. They'd probably be able to kill the Knights if they whacked them a few times. She realised suddenly that she hadn't even looked at the sword in days. Did it need upkeep or anything?

"Let me see it!"

"What?"

"Let me see the sword."

"Very well... " They took the potato sack off the hilt and began undoing the wrappings around the scabbard. She hadn't wanted to draw attention to the sword, so she'd wrapped up the scabbard to hide its splendour. Only after the Morgan's had asked about her amazing sword did she realise the hilt, despite its relative simplicity to the scabbard, would also attract too much attention, and so she had asked for an old potato sack to hold their waterskins. 
By and large she thought it worked rather well. No one would look at that long mass of wrappings on a monk and think it was one of the legendary swords of the world. She'd successfully drawn attention away from the sword.

But as the Devil carefully unwrapped it, she'd realised there was another reason she'd wanted to hide it. She couldn't bear to look at it. Alone in the vault below the Keep, the faint blueish glow of the sword had filled her with disgust. Though the design was different, it reminded her of Knight Righteous's blade. The one that had drawn her blood. 
But it was her sword now. She shouldn't be scared of it. They should be scared of it.

She gasped as the wrappings came undone.

The beautiful blade that looked as though it was made from moonstone, that shone with an ice blue light was no more. The blade had turned ebony black. The once static pale blade of Kindness was shining like the moonlight. It's glow, no longer a cold blue, was now a sickening aura of iridescent dark blue and greens. She hadn't noticed the hilt at first because she was more focused with the blade, but now she could see that his had turned as pale as snow instead of the fine brown and grey that it once was.

The Devil studied it with curiosity. "Interesting."

"Is that all you have to say?" Aria snapped at him. She was at her wits end already but now the change of her blade caused her to spiral. It's the only thing she could rely on right now, it couldn't be broken! "What have you done, Devil? My legendary sword of God looks like it comes from hell!"

"Don't panic, idiot girl. I believe this is just the blade's reaction to my Squire hood. The power of God within it has rejected my power as I said before. But due to our bond through the blade, I seemed to have caused friction between my nature and that of God's, creating an odd balance."

"So, does it still work?" She didn't care much a lot about the reason behind the change.

"Oh yes! God's power still beats within it, just in tandem with mine. If anything, the blade should be stronger now."

She took the blade and immediately swung at a tree. It left an impact, far greater than the scar a normal sword would put on the bark, but not quite what she'd hoped. "What gives? Knight Righteous was cutting up the whole forest when he came for her."

"When I said more power, I meant the power to harm the agents of God as well as you could harm me back in the Keep. The blade now rejects both I and God, which might make it a unique object out of all the worlds I've visited, though not the maker's intention when creating the blades I'm sure. An oversight perhaps, something they did not anticipate happening."

"So the Knight... "

"...has more experience and skill than you with their sword." the Devil responded.

"Y'know, this'd be a real good time to, I don't know, tell me about the power you gave me."

"Why do you keep assuming I gave you pow... "

"Wait! Shut up, shut up! Look over there!" Aria saw smoke up ahead. And not the smoke you'd expect to see from a small village. Smoke from cooking fires and from chimneys and such. This was not that. The village was burning.