Jen Williams is a writer from London currently living in Bristol. A fan of witches and dark folklore from an early age, these days she writes character-driven fantasy novels with plenty of banter and magic as well as horror-tinged crime thrillers with strong female leads. She was nominated for Best Newcomer in the British Fantasy Awards, and her books The Ninth Rain and The Bitter Twins both went on to win Best Fantasy Novel. The Sleepless is her first novel for YA readers.