Since his mother's death six years ago, Carter Kane has been living out of a suitcase, traveling the globe with his father, the brilliant Egyptologist Dr. Julius Kane. But while Carter's been homeschooled, his younger sister, Sadie, has been living with their grandparents in London. Sadie has just what Carter wants-school friends and a chance at a "normal" life. But Carter has just what Sadie longs for-time with their father. After six years of living apart, the siblings have almost nothing in common. Until now.