vampire castle

Ley lines are unevenly placed if they avoid terrain features making some places sparse of ley lines and some are clustered. Vampire castles are harder to place if it needs to avoid features expecially Floodplains. Features: 1. It allows Ley Lines and Vampire Castles to be placed on Features...

Playing on iPad. I am in the Medieval Era. I have Sanguine Pact selected. I have a vampire unit. But he does not have the option of building the Vampire Castle. When I look at the Governor's screen, Raising Hunger is kind of dim compared to the initiation.