1.
Harry Potter and the Prisoner of Azkaban eBook: J.K. Rowling: Amazon.co.uk: Books. Pottermore from J.K. Rowling (9)AD.
2.
Harry Potter and the Goblet of Fire eBook: J.K. Rowling: Amazon.co.uk: Kindle Store, https://www.amazon.co.uk/gp/product/B019PIOJWW/ref=series_rw_dp_sw.