The Westing Game is a mystery novel written by Ellen Raskin in 1978 that has sold over half a million copies. It tells the story of 16 tenants who are brought together by the reading of Samuel Westing's will. They are divided into groups and must work to solve the mystery of who murdered Samuel Westing. Clues are provided to help uncover both the murderer and more secrets about the tenants themselves. Through twists and turns, the groups play the "Westing Game" to discover the identity of the killer and claim the $200 million prize.