Outcast Child by Neale Kitty

Daisy Bacon has an ordinary, happy life living with her family in South London. Until tragedy strikes and her mother is killed in a devastating accident. Blaming herself, Daisy retreats into a world of silence, unable to utter a word.

When her father remarries, the family home becomes unbearable at the mercy of cruel stepmother Vera. Luckily, Daisy can always count on her cousin Lizzie to bring sunshine to her life. But when shocking truths about Vera come to light, could it bring the possibility of a fresh start for Daisy after all?