The Tortoise and the Dare: Bk. 2 (Greek Tales) by Terry Deary

Age :7+

750 BC. The boys at school are excited. The Olympic games are coming to the city. They may be too young to compete, but their teacher suggests the school should have its own games. Of course, girls have no part at all in these festivities, so Elena can only watch as her twin brother, Cypselis, prepares for the race. Then she discovers he has made a bet with Big Bacchiad (the school bully). If Cypselis wins he will get a new goat, if he loses then Elena will become Bacchiad's slave. Elena's freedom is at stake - she needs all her cunning to make sure her brother wins. But will he? As Aesop said, 'Slow and steady wins the race.'