I'll try asking Balthazar's corpse if he's willing to talk.
But I do know if you let Balthazar know you read his diary he says he designed the soul cage and it represents the pinacle of his powers. One of Kethric's notes says that Balthazar has said Myrkul has can bring back Isobel.
But I am hoping the spell works - I wanted more of J.K. Simmons' voice.
(although devs - as much as I like this voice actor he looks nothing like an elf. In fact, if you wanted an example of "not at all like an elf" you would choose Simmons. You should have made Kethric a human)
