Asterix is a comic book (and I mean *book*) series about a village of Gauls who resist Roman invasion because their Druid is able to make a super strength potion.
Asterix is the main warrior of the village, Getafix is the druid, and Obelix is the local Menihir sculptor, also Asterix's best friend. Obelix doesn't get to drink any of the potion, because he fell into Getafix's cauldron when he was a child and the potion had a permanent affect on him.
Asterix and Obelix pretty much travel the world, facing mythical beasts and of course, romans. (Usually shouting out 'These Romans are Crazy!' as a running joke).
They're on the same level as the Tintin books. Priceless. Every Child should read them