Hidden Book Treasure No 10: 'Why have you not written before this?"

This postcard slid from between the pages of a small copy of, 'Plain Tales from the Hills' by Rudyard Kipling. It shows a view of a group of late Victorians/ early Edwardians occupied on a beach at Saint Malo. Unfortunately the postmark is difficult to read, and therefore to date, however, it is clear that someone is not happy with regularity of Mrs Cavill's correspondence.