"To be honest, even I'm not entirely sure why or how," Carl admits - because while the explanation is easy enough - I walked through the Door into the wrong universe and ended up on my girlfriend's alienworld moon base instead of sub-Saharan Africa - he's not quite sure that'll fly so well.

He pushes a hand through his hair, trying to rake it back and collect his thoughts.

"Just how much has she told you about where I'm from?"