"You kept me away against my wish, what do you think my brothers will do if they learned about this?"
Zaya was fifteen when the last time she met with her mother and father. She was too young to know what to do and the people around her kept telling her the thing that she should have done and she had to follow that.
She couldn't even ask for help to her brothers because they told her about the situation in Ogregon Kingdom and how her brothers were busy to deal with the traitors, who wanted to take the young king down from the throne and her plea would only distract them.
They told them that if Zander lost the battle against the traitor, it was most likely, they would kill him and Zenith, since that was how thing would turn out for the fallen sovereign.
Therefore, Zaya was afraid to add more trouble for her brothers.