"...I'm sorry," Billy mumbled quickly at the look of surprise on his brother's face, "I didn't mean to snap, I just...I'm trying really hard, and I hate that there's nothing I can do. Mum's been trying to give me a hand with the magic. Teaching me some stuff. But all the big stuff I've done...it's been by accident. I don't know how to replicate it. And I'm really worried about Eli and Kate...Kate especially. I know she's tough but...she's just a baseline really. What if something's happened to them and it's my fault?"