Top-class authors and illustrators bring their brilliant stories to the severely struggling reader in these hi-lo, dyslexia-friendly tales with a reading age of 6 The old books in the museum are worth a lot of money. So, when Harry and Kate spot a man acting oddly, they decide to investigate! A brilliantly accessible short story with a reading age of 6, Harry and Kate at the Book Museum is designed to help severely struggling, reluctant and dyslexic readers aged 7+ with a reading age of 6.