Joseph can't see anything but relies on what he can hear to know what is happening. Find three words which tell you what sounds he can hear.

‘That’s the prison bell,’ said Joseph. ‘It’s a long time since it rang like that - when the last prisoner escaped.’ (pg. 25)

On the evening of the third day the guard came as usual. When Joseph heard the soft thud of his footsteps in the snow, he crouched down on the floor at the back of his tiny cell. (pg.5)