Erathia is a kingdom of mysteries and secrets.

Yes, it's beautiful.
But there are several inaccuracies here.
From Harmondale, you can only reach Erathia, Tularean Forest, and Barrow Downs on your own.
And if you believe the map, you can also reach the Land of the Giants. But in reality, the portal to this location is in Nighon.
And Evenmorn Island is not in the correct location.
Just don't take it as gospel. :)

So, the worlds of Heroes of Might and Magic and the world of Might and Magic are CONNECTED???
I'm in shock....