The Westing Game by Ellen Raskin was a compelling mystery novel. Sixteen heirs are chosen to come to Sunset Towers and hear the will of Samuel Westing, who is a multimillionaire. They are all surprised when the will is turned into a game, with the 16 broken into pairs of eight. Each group is given a set of clues to figure out who murdered Sam Westing. And the winner inherits? His $200,000,000 fortune and his company! It’s a race to see who’s the better detective in this Newbery Medal winning book.

Picture from http://upload.wikimedia.org/wikipedia/en/d/d0/Westing_cover.jpg