Nigon is the second underground race.

You named the race Nigon and claim that there were no Hydras or Rocs in Nigon. How is this related to the trash world of the fifth Heroes game?

I named the race so that people would understand what I'm talking about... the name is not final and can always be changed.
In Heroes of Might and Magic 3, they were in other castles... I already wrote about Might and Magic.
Regarding the fifth game, I meant that it's a different story here, so the creatures have a different history too...