That's probably supposed to be an insult; Unthank just lifts his eyebrows, amused. He sits still, for a moment, when Johnny gets up, wearing a tolerant expression like a man watching a favoured pet refusing to come to heel, before standing himself, shoving his hands into the pockets of his blazer.

'By all means, put your expertise to use.'

He nods at the doors installed in all three facing walls. Let Johnny make the choice. Doctor Unthank is... more or less confident that, however this house works, it will choose to prey on Johnny before him. And he rather likes the element of choice. Or the illusion of it, at any rate.