Hiraeth is a word in the Old Tongue (and it is a Welsh word on Earth), loosely translated as “homesickness.”
This name is fitting as Logan Bartholom spends most of his time wanting and wondering about a home he once had but can no longer remember.
This extensive range of mountains in Karak (sometimes called World’s End or Cataio Probi) separates the world of Ossyan and Dal-Rhiatah from the void or the Great Nothing, as beyond those peaks lies a sheer edge and a madness-inducing descent into space. This is very odd, as the world in question is round, but at this point, reality is thinner and less certain, so the area seems flat. All the magical particles flow into the world from the void at Karak, which is the furthest North one can travel.
The precious and revered wine known as katsume is brewed and left to mature in barrels dangled over the edge of the world by experts. It is believed that the concentrated magical particles in the atmosphere infuse the alcohol with a particular flavour.
The Hiraeth mountains are also the semi-permanent abode of wandering tribes of magi (not all of them human) including the Plentyn-Aderyn tribe, who briefly take Cailte and Professor Conan with them on their travels in “A Dark Heritage: The Nighthunter.”
Something else about these mountains: they are “flighty” according to Trabas, a Muryan adoptee of the Plentyn-Aderyn (more about him later). The land is so uncertain that close to the void that the mountains tend to shiver in and out of existence. Any sudden noise prompts them to flicker and shunt unsuspecting travellers into parallel worlds or different times.
There is one mountain slightly separated from the chain, called Amhan-Siu or Mount Wanslo, where a certain Witch is waiting for Logan and Noran…
Nightwalks 