Necropolis discussions.

Yes, but it doesn't matter to Necropolis which Castle they join from. If you build a Bone Factory, you'll soon have a Vampire Mage.

Well, that's fair, but it's a shame to turn Furies and Arbalests into Zombies; it's better to turn them into Skeletons, IMHO. Tomes, Golems, and other mechanisms also don't get zombified(((