Zach didn't know any of it, about any of it. Uncle Tewdric had been someone Zach saw on occasion, not regularly. And they didn't talk...in depth or whatever. Zach couldn't even remember what the last conversation they had was about or when exactly it had been. It was a while, that was for sure. And Zach was pretty certain his experience with charms was the main way he could possibly help. Uncle Tewdric had to use something.
"Oh right," Zach still felt a bit uncomfortable about there being a portrait of Theo that could talk and think and know stuff and...stuff. It was creepy. Theo already was ... around. Why was there another one? Still, he went along with it, as weird as it made him feel inside. "I know what sort of magic to look for, but that doesn't tell me where to look," Zach pointed out.