Grace is the last matriarch of the Cahills, the worlds most powerfulfamily. Everyone from Napoleon to Houdini is related to theCahills, yet the source of the family power is lost. Now the cluesrace is on, and young Amy and Dan must decide whats important:hunting clues or uncovering what REALLY happened to their parents.Publisher: Scholastic USNumber of pages: 176Publication date: 2023Dimensions: 152 x 229 x 13Cover type: Paperback / softbackIllustrator: Ethan Young