"Oh, sorry, I get excitable," Noah says, smiling apologetically. He hadn't meant to be cryptic or weird about it, and he's aware of his own awkwardness around people - it's stopping himself from being awkward that's the difficult part.

"I'm dead. I mean, I'm a ghost. But I can eat now," he adds with a small burst of enthusiasm that quickly dims back into calm. He picks up a fork and slices himself a piece of pie, transferring it carefully to a plate. "It's a long story."