Martin frowns at the question, though not because it troubles him exactly - he's just not sure how to answer, either practically or with the limited vocabulary at his disposal. He starts to reply a bit hesitantly, spelling out "London" to start with, when any further thought of explanation is abruptly quashed by something rustling in the corn.

He freezes and stares out at it, and feels Marcus go similarly rigid beside him. Martin hasn't actually caught a solid glimpse of these creatures - he's seen the news clippings and other paraphernalia Lee's collected, but nothing in person - and he has no desire to start now. It could be anything, another person, an animal of some kind, but regardless, he knows the noise is dangerous all on its own.