Owl mask is a forbidden forest eocat. Forbidden forest eocats are evil cats who when they die they go to the forbidden forest and get mutations from the mist. Only the dead get these mutations. When Owl mask was alive his lover cheated on him so in blind rage he murdered the eocat who made his lover cheat on him. He was punished with the mutation of two heads. The second head resembles his rage and when ever he gets angry he grows another head.