Since Sirius/AB is a universal receiver, shouldn't Violet be ok accepting any type of blood? That's assuming Sieglinde has discovered the compatibility of blood types of course
Blavat knows this already, but Sieglinde might not….
Therefore, the earl might be asked to donate… and he might do it just to get information out of him as quickly as possible.
(I still think Violet will be important after this, but….)









