'Is everything all right, professor

'Is everything all right, professor?' asked Harry. 'Of course, Harry. You know I don't believe any of that kind of rubbish. I'm fine,' the professor told him. 'No,' said Harry. 'I mean, you didn't hear anything just then, did you?' 'Only the birds and the traffic, Harry,' said Professor Teo. 'Was I meant to?' 'No, of course not,' said Harry. 'It must have been my ears making funny sounds. I have a bit of a cold and it gets to my ears as well. Sorry.' 'Well, if you are unwell you must rest, Harry. Take care,' said the professor as he left the room.