The Underworld: The Haven is played both above and below ground. The underground passages are connected to the overworld at 5 points - one in each corner, and one in the center.
A unit in a crossover space exists on both maps. A crossover space is connected (via land, for army movement only) to all spaces adjacent to it in both worlds. For example, an army in Yggdrasil (underground) could support a fleet moving from Thon Tholas (overworld) to Cave of Ordeals (both worlds). But once the fleet occupied the Cave of Ordeals, it could not move into either underground space - only an army could do that.
The crossover spaces are:
Mount Nimro (center)
Cave of Ordeals (northwest)
Dragons Teeth Mountains (northeast)
Hoarluk (southwest)
Nowwhat (southeast)
The Eternal Build Centers: There are 9 special centers on the board, designed to create hot spots and extremely desireable centers to capture. This is because any power may build in one of the 9 eternal build centers!
The 9 eternal build centers are:
Telmar (northwest)
Spiral Castle (northeast)
Dargaard Keep (west)
The Julianthes (central / island)
Myth Drannor (central / island)
Never Never Land (east)
Whoville (southwest)
Krikkit (southeast)
Spirit Pond (underworld)
The Rivers:
Rivers are marked by blue lines on the map, and function like the standard game canals in Constantinople and Kiel. A fleet may move into a space that contains or is along a river, and may cross thru that space provided it moves to an adjacent space also connected to the river.
Province Names:
The names are taken from over 75 fantasy books, movies, shows, games, songs, places, mythologies, fairytales, folklore, and a few of them completely made up. The more you can relate to, the more you were probly a fantasy geek growing up!