The main antagonist of the series. She seems to have ties or connections to Gareth appearing in subtle moments throughout the series, not much is known is known about Kari other than the fact she is a Wraith Knight. Wraith Knights are defects of Sigil Knights the Berserkers, people who choose the path of more power rather than the one of order and protection. Kari also seems to be very invested in Gareth, one may say she is crazy about him always attempting to gain him back to "her side".