Can we Trust myre?

I absolutely do not know. She is Kezess's wife. In fact, it might not be far-fetched to say that she is the final hidden boss. She evokes the sense of danger along with motherly warmth and care.

I don't if she is trustworthy... but she was the first one to teach Arthur about aether despite dragons being all haughty. I don't know if she fore saw something and was great and grand manipulation tactic.