You are a woman of wit; to hear as much does not surprise me.

[ is there a note of pride in her voice, like she is speaking to a child who has performed some great feat? maybe. ]

As for the Dryad's constitution, yes. If it is the creature I suspect, it possesses a physical form that is vulnerable as you and I. However... locating it may be difficult, especially if it has fused in part with the Tree.