Spell 30

"When twelve-year-old Aaron must stay with his estranged father in Egypt, he knows he's going to die. But worse happens when he's accidentally swept back in time to Ancient Egypt with Manar, a savvy Bedouin girl. They fight angry gods, expose a plotting vizier, and help young Tutankhamun win a battle against Kush invaders, and those aren't even his toughest battles. They discover they're not really very good at getting back home."