Keith Allan pursues his enquiries into the keeper's craft with a visit to Ann Dunn , a level-crossing keeper in Northumberland.
'It's the sort of job that if you didn't like being alone or you didn't like living in the country or you were afraid of the dark, you would very soon go out of your mind!' Producer GILLIAN HUSH BBC Manchester
(Re-broadcast tomorrow at 4.45 pmLW)