Read it through once

‘Well,’ said the doctor, laughing heartily, ‘that is no very difficult matter. But to return to this boy. The great point of our agreement is yet to come. He will wake in an hour or so, I dare say; and although I have told that thick-headed constable-fellow downstairs that he musn’t be moved or spoken to, on peril of his life, I think we may converse with him without danger. Now I make this stipulation--that I shall examine him in your presence, and that, if, from what he says, we judge, and I can show to the satisfaction of your cool reason, that he is a real and thorough bad one (which is more than possible), he shall be left to his fate, without any farther interference on my part, at all events.’