Eilyra looks to Antis, and shakes her head. Whether he is a willing servant or not, he definitely seems to be a servant of our enemies, and his knowledge seems too out of date to be terribly useful. He might even be the artifact the other prisoner spoke of, who is this Pilo, and is definitely not Antis's friend. Without a way to cross check anything they say, we can't rely on them, which would leave us with needing to find a way to ensure their reliability or us needing to be truly desperate before releasing them.

"Whether willingly or not, your actions seem to serve our opposition. Absent a way to remove whatever control over you they have, freeing you is unwise. The questions are an effort to find a way to remove that control, or at least gain some idea of where such a removal might happen, or what might be involved."