She isn't quite scolding, but he gives her a wry look, anyway.

"It's my prerogative," he says, but she's right, of course, so he nods.

"It's going to be a very messy business. Narnia has been completely invaded, and her armies are scattered, her soldiers confused and lost. But yes. Rest assured that I do, in fact, know what I've gotten myself into. Tirian and Eustace and I have talked and we've come up with a strategy we think will work."

His voice is quiet, but level, and now he reaches to take his sister's hand, a smile flickering at the corners of his mouth before fading again.

"I promise. Besides, this is something I'm really quite good at, you know."

Just because she knows his light tone is for her benefit doesn't mean he's going to stop.