When James Bradley offers Mr Perkins a new job with accommodation thrown in Mr Perkins has no qualms in accepting the offer. But the accommodation is not a patch on their modern home in Empress Drive, Manchester; it's a lonely three storey high Victorian semi with next door boarded up in a run-down street. Mr Perkins daughter, Molly is disappointed with it, but at least she makes a close friend in Sarah Watts at her new school and that's a bonus because strange things are happening in Molly's bedroom. First the tapping and then the voice; who is the boy in the wall? In a thrilling adventure author Brian Porter takes the reader into a malevolent world where only the fact that Molly is special can save herself and Sarah and the boy in the wall.