Arabella Twigg is a very ordinary girl living with her extraordinary family. She loves her Gran, but tries 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 work at school and when she is learning about the history of the Greeks, she finds herself transported to Greece, at the time of the early Olympic Games. Unfortunately, her brother is taken with her and he is angry and blames Arabella.
She doesn't know how they got there or how to get them back home.