Keres is an evil shape-shifter who normally appears as a white kit with empty, soulless eyes.
Keres's past is unknown, but he is often said to be the most evil thing in existence. He wants to kill Orpheus for an unknown reason, but it is possible that he wants to get rid of the black tomcat because his shape-shifting powers match his own.
- "Keres" are female death spirits of Greek Mythology. But I couldn't find the males ones, so you know :/