Join Jenny, Izzy, and Keisha as they search for Jenny's family heirloom! Jennifer Maggy Thomas is a girl who just moved to Miami. She is beginning seventh grade and loves to solve mysteries. So when her mom loses their family heirloom (a diamond), Jenny is more than happy to help find it. She sends for her friends Izzy and Keisha and together they search for the missing jewel. But then, Jenny and her friends run across a man who lost a million dollars! Will Jenny and her friends be able to find the diamond and the money?