When the prized school netball championship trophy goes missing just days before the grand final, Jo and her best friend Ava are thrown into another adventure.
Determined to uncover the truth, the girls search the school, question teachers and follow leads that take them from the front office to the local milk bar and streets of Talma Valley – and beyond.
With the clock ticking and pressure mounting, Jo and Ava – along with some surprise new sleuths – must piece together the clues and solve the mystery before the big game.
Will they find the trophy in time, or will the thief outsmart them and ruin everything?