[Alhaitham hums at that last remark from G'raha, mulling over it as he gives the area another scan. If this is one of its usual spots there is a chance that it might return here later, but there's also a chance it might have gone and found another spot to settle itself in. There's no real way to tell until it actually happens though.]

Given how its activities took a while to be noticed, I wouldn't be surprised if it was nocturnal. [Then again, given the size of this place in general and with all these shelves around, it probably wouldn't be hard to keep itself hidden from wandering passersbys... so really, it could go either way.] If that's the case, it might be light sensitive.