I dreamt for so long.

My flesh was cold crystal... and my blood, frozen.

Sinking into the sunless sea, past worlds and memories...

As I awaited... to wake again.

Siberys is afflicted with idiopathic narcolepsy and severe amnesia, which eventually led to his recruitment at [REDACTED] University's research facility.  He is employed under the institute's Diver division, both to research the Nightmare Realm and also to piece together his fragmented memories. He perceives his diving experience as a literal interpretation of the word - the Nightmare Realm being an ocean, and himself being a lone fish within it. 

Sharp, observant, and blunt; he's not too easy to get along with, but his work ethic makes him an excellent collaborator. He seems to always be in search of something, and can sometimes be seen in the Research Facility or Eberron's Kingdom. 

Currently, he is mentored by Eberron (L-316), who also looks after him in the waking world, and assists Nero (A-045) with his never ending piles of work.