[Ren leans in close with a finger pressed thoughtfully against his lips to get a good look at the picture and hums softly to make it clear he's listening and not just being silly.]

I see. That's a shame that he couldn't tell any more than that. Like a direction it might be pulling to or something like a fingerprint...although I guess even if that was there, you'd need something to compare it to...

[He shrugs and straightens back up with a bright smile over at Yukine.] Sounds like you two are going to have your hands full with that. Good luck!