[It doesn't look like Aerith's given up so far, which is good. Honestly, something as small as what she described could be anywhere in the mention depending on where Aerith spent her past few days, so there's still a lot of ground to cover.]
Right. [She moves back out into the dining area and starts to look around more carefully, crouching down here and there to check under the tables. It's always so maddening when you can't find something, especially something important, but she hopes that Aerith doesn't give up.]
Even if we can't find it, the whole mansion knows that you're looking, so it has to turn up eventually. [Unless someone stole it, but if Aerith's Materia truly has no use, why would anyone bother?]
[action]
Right. [She moves back out into the dining area and starts to look around more carefully, crouching down here and there to check under the tables. It's always so maddening when you can't find something, especially something important, but she hopes that Aerith doesn't give up.]
Even if we can't find it, the whole mansion knows that you're looking, so it has to turn up eventually. [Unless someone stole it, but if Aerith's Materia truly has no use, why would anyone bother?]