Anonymous Patron writes "Evening News 24 In The UK Some books are too good to put down or get back to the library on time, it seems. Libraries say the best-sellers are the ones most often overdue. Bookworms in Norfolk are getting so engrossed in library copies of JK Rowling and Jacqueline Wilson books, they are forgetting to return them on time. JK Rowling's Harry Potter and the Half-Blood Prince is the book that was most frequently overdue in the county's libraries between July 2005 and July 2006. Readers kept 21 copies of the boy wizard tale beyond their due date."