Some things have sentimental value.

Like this odd little thing, prominent among the "Miscellaneous" quivers. (Mostly they're Bane against things that aren't too likely to come up - reptilian humanoids, oozes, gnomes specifically...) This is a single arrow, a glossy and ominous-looking obsidian barb wire-bound to a splint of bone-white wood. It's fletched indifferently, but... there's something about it...

Ooh, yes please. She bets it's some kind of super-rare magic item.

Against this hypothesis, when she grabs it the whole assemblage falls apart like a cheap piece of shit.

For this hypothesis, as the arrowhead falls it nicks her hand, and then –

it feels like waking up. The same feeling that oh, you never even were where you were. That nothing is real again yet. Despite the arrowhead falling to the floor and cutting her open a moment ago, she's now holding it in her left hand, firmly but gently.

She's not in Old Blind Pete's storeroom. She's probably nowhere in Greysky. She's in some kind of grand temple, forged from the same shimmering obsidian and lit by ghost-pale flame. She stands on a raised pentagonal dais; a few yards ahead, there's a free-standing doorway; at the end of the room, there's another door, shrouded in mist.

She's not alone on the dais.

"Greetings, Sojourner."

If this statement had a speech bubble, a great deal of thought would have to be put into its design. The... being... is rather vague. Its body plan is humanoid; its face mostly isn't anything; it has wings, but they seem sort of an afterthought.

Oh god damn it.

"Hi, sorry for activating your cursed item," like an idiot, "I'm guessing you probably want it back?"

She holds it out.

The being shakes its head. "It was never mine... I am its tool, as it is yours. And while it is yours, I am your tool as well."

What.

How in heck did Pete get his hands on this without Bozzok catching wind of it. Unless…

"So is this because I picked it up, or… I dunno, some sort of it can only be me thing."

She kinda thought that was Roy's department.

The being's hand rises, and it makes the sign of the scales. "You are not the only one who could have mastered the Relic. But it would not awaken without something you have, which few mortals possess... and fewer immortals."

"What's that? And if I've already mastered it, what's it do?"

Please be something useful and cool, please be something useful and cool…

"The quality to which I refer is difficult to summarize in your language, or by using concepts you have," the being apologizes. "We might say it is that you are... shiny."

"As to the Relic's powers, they are much easier to summarize. You will no longer die unless you wish to do so."

Blink.

"Huh, cool! What happens if I hit 0 hit points, then? Or, uh, bleed out into the negatives."

"You come here. I send you back, healthy and restored, to the moment after you 'died,' so to speak."

Useful and cool! Sweet!

wait she should probably make sure this guy is telling the truth

She scrutinizes its… unface… and body language.

The Reaper would like to note that use of the word "bluff" in the next paragraph does not imply that it is deliberately peddling falsehood, or that it could, strictly speaking, do anything other than this. That said:

Sometimes it is said that an entity's rank in some stat, or score, or level, is "Yes." The Reaper's Bluff is not "Yes." It is "No."

All of which is to say keep guessing, rogue girl.

Yeah, she's got nothing on this guy. Which is honestly more reassuring than having a sense that it's telling the truth. If she came out confident that it wasn't lying that would probably be the result of mind control or something.

She decides that until she knows what it would get out of lying to her that it couldn't get from doing literally anything else, she might as well make choices as though it was telling the truth. Which means:

Oh hell yes!

"That's a pretty sweet deal. I can't wait to see the look on Crystal's face!"

"Immortality does often have an amusing effect on one's foes. Shall I explain the respective purposes of the three doors in this chamber?"

"Yeah, sure!"

It's probably some symbolic thing, since that seems… kind of how this place works. Like dream logic.

"The door set in the back wall -" (wing-gesture) "- I am not permitted to explain, except to say that it does not concern you, and will not until and unless your time comes.

"The central door leads... somewhere. Wherever you are needed. In extreme cases, whenever. Its operation is intuitive, but the grounding principles are practically unknowable, except that it will take you somewhere you will make a difference.

"And behind you is Death's Door. It will take you to the last place you died, or had your death averted by my intervention."

"… okay, I think that makes sense. I know you just said you can't explain the first door, but does if my time comes mean if I choose to die? And I'm guessing that Death's Door won't do anything if I try going through now, since I haven't died yet. Unless the arrowhead was technically deadly poison or something."

Which leaves her with Door #2.

"There are probably lots of places I could make a difference. Do I get to pick, with the intuitive operation?"

"I cannot explain the first door," it repeats, with a certain what do you expect quality. "And, no. The intuitive operation to which I refer is the doorknob."

"… So it's basically a blind jump. Okay."

It's not like she has any other options, if she wants to get out of here. Unless…

She turns away from the figure and paces around the edges of the room. She's not really expecting this search to be fruitful, but she'd kick herself pretty hard later on if she didn't even try to find another way out.