The sheer amount of loathing for the living contained in the seed is prodigious--it's honestly a wonder that Twozias has kept her homicidal rage contained to just Tyzias. The seed is absorbed after some struggling, but some of its oily black smears of hate remain on the interior of the Hollow soul. And it looks like that after depending on something so alien to keep her soul in the physical plane, both Twozias and Tyzias's souls are degrading more rapidly. It's not an urgent problem, but it will need to be dealt with at some point.

"Ow! Hey, what did you do?" Twozias complains, wincing.