What could be more thrilling than solving a hundred-year crime? Ava and Carol enter a contest where the stakes are high. Find the famed Irish Crown Jewels and win a $10,000 prize. If anyone can locate these priceless treasures, it's Ava and Carol, middle school super sleuths extraordinaire. The girls, along with their friend Derik, embark on an adventure to solve the mystery of the missing jewels. If they win, they agree...