Ursula Harvey Bloom was a British novelist. She wrote her first book at the age of seven. A prolific author, she wrote over 550 books, an achievement that earned her recognition in the Guinness Book of World Records. Many of her novels were written under pseudonyms, including Sheila Burns, Mary Essex, Rachel Harvey, Deborah Mann, Lozania Prole and Sara Sloane. She appeared frequently on British television. Her journalistic experiences were written about in her book The Mightier Sword.
Source: Wikipedia