Kharkosia
Kharkosia is a continent to the northwest, it was previously known as Krotoa in bygone eras.
Krota
According to several texts dating back to the Second Age, Old Krota (as it is colloquially known today) was a legendary continent blessed with vivid jungles, and dotted with several city-states which existed in a form of complete harmony alongside some of the most powerful cities of the late Dwarven Empire. Records tell of the complete peace of the region resulting in the casting aside of its arms due to centuries of peace and prosperity.
Several historians of our age have inferred that it is possible this land fell to some form of decadence.
The Rise of Kharko
Around approximately 3000 2A it is assumed that the legendary elf Kharko arrived with his tribe, planting the seeds of the calamity which ended the era.
In Kharnaten
"The dark one has misled our people and Krota now knows the true meaning of war and horror. Our friends deepest holds have fallen to addiction to the Blackwine and emerged twisted and sickly-skinned, our brothers have become stunted and twisted, and we have no reprise. Our era has ended; the Gods have stolen the Sun and Stars in this endless night as we are damned to live under His thumb."
Evidence points toward the Calamity never truly ending in Kharkosia - instead it merely intensified. This came to a head when in around 51 3A, the angelic judge Gestor descended to Kharkosia to banish the entire continent to Kharnaten for 1,000 years.
Today
Today, clear evidence of Old Krotoa still persists in the continent in the form of various ruins. Much of the wilderness has been subsequently corrupted by being bathed in the dark magics of Kharnaten for a millennia, as the land is now a twisted form of its once glorious past.