Lament of the lost

Alkazar, one of the greatest mages of the empire, was lost in the swampland of fog.
His traces were followed to the first trees of the unholy forest. But nobody dared to go
any further. For the magic circle, it was a bereavement. The friend, who had been company
for many many years, had vanished. Vanished on his journey to discover new secrets.
Most of Alkazar's brothers mourned, because they considered him as dead.
The grey fog that lay deadly over the swampland, slowly turned into bloodred, began
to creep into the lands of light. And with the fog, came the horror. After two days,
all the lands lay under the fog and no sunray could penetrate it. It had brought undead
creatures with him, which hunted the humans. Villages were razed to the ground, mankind was
slaughtered, wherever found. The humans tried to run away, to hide in one of the
big fortresses, but everybody lost his bearings in the red fog. And whoever once had lost
his way, was lost forever.