I'm not... quite sure. How it works. How many pieces. If some are just memories, and he's gotten rid of so many. Thousands of years...? Or if this one is more specifically a bigger essential part of him, like his soul. Since he told Valdis he doesn't have one. And Bash might have encountered it in the Nothing.

And given... Friday's reactions. Called it the part of him that used to be loved, what she was holding onto for him.

And I think there are... magical protections in place to prevent him from knowing.