Question: Sapphire Battersea is the 2011 sequel to "Hetty Feather", written by best selling English author Jacqueline Wilson, whose  children's novels frequently feature themes of adoption, divorce and  what type of illness?
Sentence (from "Paws and Whiskers"): Paws and Whiskers is a 2014 fundraising anthology for the Battersea Dogs and Cats Home, featuring some of the best children's stories about cats and dogs of all time, selected by multi-award-winning and best-selling children's author Jacqueline Wilson, with illustrations by Nick Sharratt.
Relevant evidence: No