Kate Webster

From Tardis Wiki, the free Doctor Who reference

Kate Webster was a character in a book. There was a spoonhead disguised as her sent to capture Clara Oswin Oswald, a reader of the book she was in. (TV: The Bells of Saint John).

Inside the story itself, Kate wants to make the most of the week, but then has an adventure she didn't know would happen. She sees a painting called The Lord of Winter in a charity shop, to find out it's actually a puzzle. With help of two people, she wants to solve it. (PROSE: Summer Falls).