I saw this on January magazine's blog.
“We’re sad to confirm our wonderful and inspiring author Diana Wynne Jones passed away today,” came a tweetfrom HarperCollins UK children’s division. “She will be much missed.”
Bestselling author Neil Gaiman, a dear friend of Jones’, tweeted, “Rest in Peace, Diana Wynne Jones. You shone like a star. The funniest, wisest, writer & the finest friend. I miss you.”
Jones was born in London in 1934. She is best known for her novels of fantasy and magical realism for children and young adults including the Chrestomanci series and the novels Howl’s Moving Castle andDark Lord of Derkholm. You can read reviews of two of Jones’ books on January Magazine here and here.