Linda Sue Park (born March 25, 1960) is a Korean-American author who published her first novel, Seesaw Girl, in 1999. She has written six children's novels and five picture books. Park's work achieved prominence when she received the prestigious 2002 Newbery Medal for her novel A Single Shard. She has written the ninth book in The 39 Clues, Storm Warning, published on May 25, 2010. Source: Wikipedia (en)