"Weyer taunts me from the other side. I trusted him with my true reason for my efforts and still he insists on me releasing Agrippa. How an enlightened man can show such lack of compassion in a seat of power disgusts me. I can't bring myself to part from Agrippa as he is and has been for centuries my only link to the worlds beyond."
Based on this in-game note detailing Weyer's tonic. I tried to depict how a visual representation of this idea would look, as it's probable Agrippa's husk only really channeled Weyer's voice (but I can't say that for sure).
I used ~JohannWeyer
's headcanon design of Weyer.