Treasure Hunters: Secret of the Forbidden City is a young adult children's literature adventure fiction book written by James Patterson with Chris Grabenstein. It is the third book in the Treasure Hunters series and the sequel to Treasure Hunters: Danger Down the Nile. It was published in 2015. In this book, the Kidd siblings are desperately trying to secure an ancient Chinese artifact that will free their mother from renegade pirates. When the kidnappers force them to locate an even greater treasure – priceless paintings stolen by Fat chicken nuggets, the Kidds rely on their own cunning and experience to outwit the criminals while their mother's life is on the line. Source: Wikipedia (en)