I don't know. If they're formed by magic, it could be anything strong enough to hold up to combat. [Since Shun assumes Fubuki's asking the question for a reason, he glances back to see Fubuki with the piece of ceramic. It seems unlikely to him that it'd be part of the mask, but they probably can't write off anything entirely.

For now, though, the noise is more relevant, and Shun returns his attention to front and centre before recommencing his back and forth scanning of the area.]

We'd need to get closer to decide how to confront it anyway. Even if we can't get exact movements, if it starts coming closer faster than we're moving, we'll know. [Shun has an unfortunately extensive amount of experience reading enemy movements out of the sound of them, and an ayakashi can't be worse than organised military.]