[Shepard straightens from where she'd been attempting to scan a... honestly she's still not sure what it was, with her omnitool. To no effect of course. Nothing here is known. Nothing really makes sense. She'd heard the footsteps, but hadn't worried about them. After all, she's fairly confident in her ability to handle any potential threat that might be headed her way.

But the human who comes into view definitely doesn't seem like a threat, so Shepard straightens before dusting off the knees of her uniform neatly.]

Well, if you want my best guess? [Shepard looks back at the still unscannable item before shaking her head and turning back to this stranger.] We're talking old, old. I've seen ruins that were well over 50,000 years old in better shape than this hunk of junk.