Unhinged — Sarah Graves

It began with the mysterious disappearance of Eastport, Maine's snoopiest resident. Everyone is convinced the old busybody bolted out of town to escape her creditors--everyone except Jake and her best friend, Ellie. And just as Jake starts poking around for clues, things suddenly take a turn for the worse.

Yesterday, Jake's only worry was fixing her broken-down gutters and downspouts. Now, everything seems to be falling apart around her and she's on a do-it-yourself hunt to catch a homicidal maniac with a chilling blueprint for the perfect murder.