Margo Brown is just your ordinary middle-school teacher until a mystery occurs in her school and activates her sleuthing genes. She admits her investigations have about as much structure as a nervous breakdown. No one else finds it peculiar that a teacher died on the same night as the school’s homecoming festivities for the past two years. Follow Margo and her side-kick, Roxie, as they race against time to stop a killer with his own lethal lesson plan.

Margo Brown is just your average Indiana schoolteacher...who also happens to be an amateur detective. So when Margo finds an old gun buried in her garden, she does what anyone in her postition would She uncovers a crime and tries to solve it. It seems that the gun, buried for 55 years, just may be the weapon used to murder schoolmaster Gus Steiner, the former owner of Margo's property. The puzzling murder leads Margo and her sidekick Roxie into the world of the past, where one-room schoolhouses and strict disciplinarians prevailed. But at every turn, someone in the community attempts to thwart the investigation. Margo must unravel a complex web of deceit and conspiracy if she wants to uncover the dark secrets behind Steiner's death and stay alive in the process. A bona-fide treat for all students of the mystery genre, full of surprises, quirky characters, and subtle humor.

A quiet community is shocked when seventh-grader, Johnny Benson, is found dead. It seems that a poisonous snake crawled into his bed and bit the boy while he slept. The boy's death seems to be an unfortunate and tragic accident that no one culd have prevented.