A Good IdeaA Good Idea is a taut, dark thriller from the author of Althea & Oliver. Finley and Betty's close friendship survived Fin's ninth grade move from their coastal Maine town to Manhattan. Calls, letters, and summer visits continued to bind them together, and in the fall of their senior year, they both applied to NYU, planning to reunite for good as roommates. Then Betty disappears. Her ex boyfriend Calder admits to drowning her, but his confession is