First of all, what province is it actually taking place in? I assume this info would be in the dispatch, or does the patriarch intend to keep that secret?
Sadly, that is the sort of thing one needs to know a turn in advance. If I had known it in advance, I might have created a ley line. Ley Lines take a full turn to create, I think, so... not really an option.
Or can ley lines actually be created in-turn Bjørn?