 She also hasn't embraced her Fairie side and thus is still part human.At the end of Cold Days, it is revealed that Mab hoped for Sarissa to become the new Winter Lady after Maeve was dead, but only as a last resort if Maeve couldn't be persuaded to be cleansed.However, Maeve learned of Mab's intentions (but either didn't or refused to hear the last resort part as Mab would've killed Maeve herself if she really didn't care) and killed Lily, knowing that the Mantle of the Summer Lady would flow into Sarissa, thus thwarting (some of) Mab's plans.