Azzalin's Anamnesis

You extract all the memories of a cadaver.  The spell must start with a living creature, the spell will extract both the life and the memories of the target over the casting of the ritual.  The memories of the target transfer to a mirror that then displays the targets memories from their perspective.  The targets body will then become undead and in the control of the caster that follows its commands.  The control ends once the mirror is broken.