"Unbeknownst to eleven year old Theresa (Tessie) Finley, she's in over her head. After hearing a scream and catching a glimpse of a mysterious man carrying a body beneath the flickering streetlights in the cemetery behind her house, Tessie adds solving a murder case to her already quite full to do list. Tessie has elected herself president of the crime-stopping Mutual admiration Society " ... (which also includes her younger sister Birdie and best friend Charlie (Cue Ball) Garfield). (Summary from back cover).