Used book – The 12 Labors of Flavia, Caroline Lawrence, Antoine Ronzon, Alice Marchand

There are four of them: Flavia, the daughter of a Roman shipowner, Jonathan, the young Christian, Nubia, the African slave, and Lupus, the mute beggar boy. United by adventures and perils. This time, the four friends embark on the trail of Hercules. Just like the Greek hero, twelve labours await them. Twelve trials... Twelve riddles... Twelve challenges.