Board Thread:General Discussion/@comment-70.72.38.180-20150328175811/@comment-82.46.35.19-20150406214922

A hidden surface kingdom I would regard as less likely. Modern aircraft and satellites would observation of the other continents (unless there are Grimm that can knock down high altitude jet aircraft. Or satellites). A hidden underground kingdom is possible though. I thought more the other two continents would be inhabited by other entities such as settlements of varying sizes, if they are subject to humanoid habitation at all.