Phipson and Eleanor Spence, their works primarily set in the Australian landscape. In 1971, Southall won the Carnegie Medal for Josh. In 1986, Patricia Wrightson received the international Hans Christian Andersen Award. The Children's Book Council of Australia has presented annual awards for books of literary merit since 1946 and has other awards for outstanding contributions to Australian children's literature. Notable winners and shortlisted works have inspired several well-known Australian films from original novels, including the Silver Brumby series, a collection by Elyne Mitchell which recount the life and adventures of Thowra, a Snowy Mountains brumby stallion; Storm Boy (1964), by Colin Thiele, about a boy and his pelican and the relationships he has with his father, the pelican, and an outcast Aboriginal man called Fingerbone; the Sydney-based Victorian era time travel adventure Playing Beatie Bow (1980) by Ruth Park; and, for older children and mature readers, Melina Marchetta's 1993 novel about a Sydney high school girl Looking for Alibrandi. Robin Klein's Came Back to Show You I Could Fly is a story about the beautiful relationship between an eleven-year-old boy and an older, drug-addicted girl. Jackie French, widely described as Australia's most popular children's author, has written about 170 books, including two CBCA Children's Book of the Year Award winners. One of them, the critically acclaimed Hitler's Daughter (1999), is a "what if?" story that explores mind-provoking issues about what would have happened if Adolf Hitler had had a daughter. French is also the author of the highly praised Diary of a Wombat (2003), which won awards such as the 2003 COOL Award and 2004 BILBY Award, among others. It was also named an honour book for the CBCA Children's Book of the Year Award for picture books. Paul Jennings is a prolific writer of contemporary Australian fiction for young people whose career began with collections of short stories such as Unreal! (1985) and Unbelievable! (1987); many of the stories were adapted as episodes of the award-winning television show Round the Twist. The world's richest prize in children's literature has been received by two Australians, Sonya Hartnett, who won the 2008 Astrid Lindgren Memorial Award and Shaun Tan, who won in 2011. Hartnett has a long and distinguished career, publishing her first novel at 15. She is known for her dark and often controversial themes. She has won several awards, including the Kathleen Mitchell Award and the Victorian Premier's