诡秘外国网友评论节选意译 - 【479-481】(3)

Royal Family - I doubt it was war related. If I had to guess, I'd say they found that huge underground ruin and were tempted by it, but couldn't take advantage of it on their own. For whatever reason, they couldn't or didn't want to involve the orthodox churches, so they turned to the demoness sect. 
I suppose it could have gone the other way, with demoness sect finding it and bringing in some faction of the royal family because they needed huge amounts of manpower and living sacrifices that they couldn't have realistically obtained or mobilized in secret without being noticed by the royal family and the churches. This is actually sounding more plausible now that I've written it out...