As Liches achieve the peak of their power, they can earn the right to ascend to the form of an Akhkharu. In this advanced incarnation, their flesh reassimilates as they begin aging backwards into Human-like forms, growing younger and healthier by the year. However, their youthful, immortal forms come with a price - emotional emptiness. Apparently, it is possible to forcibly convert Humans to Akhkharus through the complex Ritual of the Night, as in Ornella and Nicolai Griffin's cases.