The M-class world Caldos II is the second planet in the Caldos system. The planet was the sight of one of the Earth Federations major terraforming projects. The founders of Caldos wanted to make the colony an accurate replica of Scotland on Earth. The cornerstones of each building were brought from different towns and cities in Scotland, and the architecture and even dress of the residents resembled that of Scotland. Citizens were not limited to Humans, however. Although the colony is similar to Scotland in the 1600's, there are some pieces of modern technology throughout the colony.