Arabella Twigg is a very ordinary girl living with her extraordinary family. She loves her Gran, whilst trying to avoid her brother, Tom, who is always trying to get her into trouble. Her life is quite boring until weird things begin to happen to her. Arabella enjoys her history homework at school and when she is learning about Egyptian history one day, she trips over and hits her head, and when she awakes, finds herself suddenly in ancient Egypt, at the time of King Tutankhamun. There she meets a young Egyptian boy named Imon, whose father works in the Valley of the Kings.