The seven Parker sisters love all kinds of mysteries. Now they're trying to solve one of the spookiest mysteries their town has ever seen. It all starts when Ophelia takes a baby-sitting job at a creepy old house. Everyone says the place is haunted... but Ophelia and her sisters aren't sure. Then they begin to hear strange noises coming from the attic. Threatening notes warn them to leave the house... or else. Someone- or something- doesn't want the house's mysterious past to be revealed. Is it a ghost... or something worse? From back cover.

7 sisters, 1 mysterious treasure. The Parker sisters have never been rich, but now they have a chance to find a missing fortune. An old man in their town has died, leaving behind clues that will lead to his inheritance. Every kid in town has a chance at collecting the money - if it can be found.

Thirteen-year-old Ophelia Parker and her sisters find themselves embroiled in a mystery involving an arsonist at a treasured camp that the Parkers visit yearly.