"I don't know if she's my sister, she just acts like an annoying older sister would," he says, though deep down, he knows that Isobel is the most precious person to him in the world outside of Alex, and if he and Max hadn't had a falling out, then he would be the next person on that list.

"It's a fishtail. Iz made me do all sorts of complicated hit to her hair when we were growing up, because Max refused."