A mortal shell

a mortal shell

Lord Lumis contemplates and uses this term in: Chapter 16 Ice Demons, of Volume X in 'Rise of the Dark One'

>>> Lumis, was not spared. He too felt the reunification of the Dark One’s essence with his true shell. However, he did not seek to become the Dark One, his task appointed by Crea herself was to defeat the Dark One. Slay him again and this time slay him for good. He had failed to do so, while that foulest of entities was still in a mortal shell and far from complete. Now the mortal shell had been dropped and this Dark Go d dwelled once again in his true shell and body. No power, no force not all the weapons of the Universe able to slay him. Except the WEAPON .<<<

He refers to a Cosmic Event he had felt. It was the Event when the Dark One was reunited with his own body on N'Ger.

The mortak shell is Erica Olafson