Now stronger, feistier, and a bit older, Sunny Nwazue, along with her friends from the the Leopard Society, travel through worlds, both visible and invisible, to the mysterious town of Osisi, where they fight in a climactic battle to save humanity. "A year ago, Sunny Nwazue, an American-born girl Nigerian girl, was inducted into the secret Leopard Society. As she began to develop her magical powers, Sunny learned that she had been chosen to lead...

Sixteen-year-old Gwen, the newest and final member of the secret time-traveling Circle of Twelve, searches through history for the other time-travelers, aided by friend Lesley, James the ghost, Xemerius the gargoyle demon, and Gideon, the Diamond, whose fate seems bound with hers.