from the preface of the manual
Arret. History of the World
This expansion presents detailed informations about the setting of the italian RPG "I Signori del Caos" 2nd Edition (The Lords of Chaos).
The World is known as Arret. It's a world identical to our Earth, but lands and seas are inverted as the name itself reveal: Arret is specular to Terra which means "Earth" in Italian.