 This reconciliation is later tested when Bones's precognitive grandsire Mencheres's wife Patra uses grave magic to try to kill Bones and Cat, forcing Cat and her friends to band together to kill her.Other plot points in the series involve Cat discovering that in the past Mencheres had wiped the memory of a controlling vampire she used to love from her mind in order to ensure that she would meet and fall in love with Bones and that she would fulfill her destiny as a powerful vampire.Cat does eventually become a vampire in order to ensure that she would be with Bones forever as well as to assuage growing fears in the ghoul population that she was not intending to become a ghoul-vampire hybrid with unprecedented powers.