Twelve-year-old Sahara lives by logic. She loves science. She always has a plan. So when her father whisks her away to her uncle's wedding in Egypt for the summer, Sahara is thrown for a loop. This was not in her plans.

In Cairo, Sahara's days are filled with family--and mystery. For starters, why is the necklace she inherited from her late mother glowing at midnight? (Unscientific.) Why does her uncle's fiancé make Sahara's hair stand on end? (Illogical.) Could the bride be a witch as Sahara's cousins claim? (Absolutely. No. Way.)

When Sahara's necklace is stolen one night, her attempts to find it lead her to a chamber--and to the greatest mystery she's encountered yet. A jinni lamp. A flying carpet. A magic spyglass. And a golden apple. This is Ali Baba's treasure, given to Sahara's ancestor Morgana for safekeeping and passed down from mother to daughter for generations. Now it's up to Sahara to protect it from evil forces threatening to take it all away. But can a girl who's never believed in magic embrace the unknown--and her legacy as the treasure's keeper?