Stung by speculation that he could be the father, Asterix sets out with Obelix to find the baby's parents.
Their only clue is the embroidered linen of the baby's clothes and wrappings, suggesting he comes from a rich Roman family.
The Romans attempt to kidnap the baby, at the behest of Marcus Junius Brutus, Caesar's adopted son.
Finally, Brutus takes matters into his own hands, attacking the village with his own legions and burning it to the ground.
Brutus had sought to kill the baby in order to become sole heir to Caesar's property and fortune, so Cleopatra had the boy sent to the Gaulish village for his protection.