The rare opportunity to beg

"It wasn't long before she was silenced and brought back into her trance once more."

In this story, a wizard took half of his magic to create his daughter, Regan, so she's basically a person made of pure power. And unfortunately that power has fallen into the wrong hands. She's kept on a leash and under a trance so that she will perform any magic that's needed to benefit the war without any resistance, and the situation keeps her from being a normal girl living a normal life, which is all she really wants.

Regan and the Captain (he's got a name but I'm looking to change it, it doesn't fit) are (c) to me