Sarah travels to Manchester from Kiplington (which approximates to real-world Withernsea) on the way to spend Christmas at her sister's in Bradford. This would make no sense as a route, if Bradford in West Yorkshire is meant. The book, however, explains it: her sister lives in Bradford-on-Avon in Wiltshire. By truncating the place-name of her destination, the script has made her intended journey appear very strange.