This is the first time Five has heard of their meeting. He folds his arms and settles in for a new and equally uncomfortable conversation. Fox met her and immediately started talking about her powers and how to control them, meaning he must have seen her practicing. Five plainly has some very complicated feelings about anyone getting involved; especially someone this excitable.

Because she's family. Because Vanya losing control means, quite literally, the end of the world. She's been learning, but the consequences of something trigging her are high in a place teeming with the undead and threats he's yet to define. He does all he can just to keep her from being overwhelmed and it seems he's already been slipping.

"A focus. You've done that before?" He doesn't immediately reject the idea, no matter how it makes him shift like he's trying very hard to stay calm enough to have this discussion. It's important that he understands. "What she has isn't the same type of magic. We don't even call it that. How do you know it would work?"