Kaz and Claire s new detective agency is a success Their latest case, though, is proving to be the hardest yet. When Claire s classmate says he saw a ghost backstage while rehearsing the school play, Kaz goes to school with Claire to investigate. From the description the boy gave, Kaz is sure it s his mom but where has she gone? Kaz and Claire search everywhere and find no trace of her, but the mysterious ghostly activities are still happening "