It is known that it is a place filled with undead.
Also, as Durand crossed the Howling Marsh with his masterwork in tow, he was set upon by Noxian assassins in force. Outnumbered and overwhelmed, Galio looked on in horror as the murderers cut down his charge, executing him swiftly before vanishing back into the mists. He stayed there feeling guilty for his master's death.
Before his update Karthus, the Deathsinger was the self-appointed ruler of the marshes. On the darkest of nights he would sing the tales of those who have journeyed and perished in it.
|Galio, the Sentinel's Sorrow||Stayed there out of guilt of his failure|
|Poppy, the Iron Ambassador||Passed by and rested on Galio.|
|Geography of Runeterra|
|Valoran||Factions & Nations|
|Other Planes of Existance|