A former mage transformed into a nothic

Zala Morphus was a mage employed within Delphi Mansion. While details about his past is scant, what is known is that their human form was forever changed by the far realm influence of the being being summoned within the mansion via the Celestial Codex.
 
Zala, being the resourceful mage they are, concluded that the answer to changing them back to their original body may exist somewhere in the stars, if only they had access to a star map of the Great Serpent constellation. A map they know to exist in the star map room of the mansion, though Zala is much too smart to try and brave the trip down the hall where dangerous creatures now lurke.