Trying to work something out here,
Last chapter before Granita’s curse went after Mors, it caressed Sherbet’s cheek. If it kills enemies and friends why did it seem like it was thanking/encouraging Sherbet? I thought for a second it was going to be one of those back stories where it looked evil from Granitas perspective but there was some misunderstanding… but mom being a heartless bitch is pretty clear cut.